Provisional Patent Filing in India, Fully Managed by Experts
Lock the earliest priority date for your invention with a provisional specification (Form 2) filed with Form 1 at the Indian Patent Office — before you disclose, demo or seek funding. Get "patent pending" status early and up to 12 months to refine the invention before the complete specification. 100% online, drafted by qualified professionals with a fixed quote upfront.
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What Is Provisional Patent Filing?
A quick, plain-language explanation before the details.
A provisional patent filing locks in an early priority date for your invention with a preliminary description, giving you "patent pending" status and up to 12 months to finalise and file the complete specification.
Under the Patents Act, 1970, an applicant may file Form 1 with a provisional specification (Form 2) that describes the invention. This establishes a priority date, but a complete specification must be filed within 12 months under Section 9, failing which the application is deemed abandoned.
Administered by the Office of the Controller General of Patents, Designs & Trade Marks (CGPDTM) through the Indian Patent Office, via the e-filing portal at ipindia.gov.in.
A provisional filing holds your priority date for 12 months. If the complete specification is filed in time, the eventual patent runs 20 years from the date of filing; if not, the application lapses.
Quick Facts
Is This Service Right for You?
Ideal for
- Inventors with an invention still under development
- Startups needing "patent pending" before a launch or pitch
- Founders raising funds who must show early IP protection
- R&D teams that will refine the invention over the coming months
- Researchers about to publish, demo or present their work
- Businesses racing to beat a competitor to the priority date
You may need this if
- You have a workable invention but the details are not final
- You want the earliest possible priority date, right now
- You are about to publicly disclose, demo or pitch the invention
- You need "patent pending" status to deter copycats and investors
- You want up to 12 months to develop before the full filing
- You plan to file abroad later and need an Indian priority date
Not sure if you need this?
Talk to an Expert →Why File a Provisional Patent?
A provisional filing is a low-cost, fast way to plant your flag on an invention before it is finished. Here is why inventors and startups file provisionally first.
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01
Earliest Priority Date
A provisional specification secures the earliest priority date, protecting you against anyone who files a similar invention after you — even while yours is still being refined.
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02
"Patent Pending" Status
The moment you file, you can mark your invention "patent pending" — a strong deterrent to copycats and a signal of serious IP intent to investors and partners.
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03
12 Months to Refine
A provisional buys you up to 12 months to develop, test and perfect the invention before committing to the detailed claims of a complete specification.
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04
Fundraising & Pitching
Being able to show a filed application adds credibility during fundraising, licensing talks and investor pitches without disclosing every detail publicly.
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05
File Before You Disclose
Filing a provisional before a demo, publication or launch preserves novelty — public disclosure before any filing can destroy your ability to patent.
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06
Foundation for Global Filing
The priority date from an Indian provisional can be used to file abroad via the Convention or PCT route within the prescribed window.
Simple, Transparent Pricing
Custom quote for your case
Fees depend on your business type and scope. Get a clear, itemised quote upfront — no hidden professional charges, government fee billed at actuals.
Who Can Apply?
Eligibility checklist
- An invention that is novel — not disclosed anywhere in the world before filing
- A workable concept clear enough to describe, even if not fully finalised
- An inventive step — not obvious to a person skilled in the field
- Capable of industrial application — useful and workable
- Not falling within the non-patentable categories under Sections 3 and 4
- The applicant is the true inventor, an assignee, or a legal representative
Everything You Need. One Professional Team.
Consultation
Understand your invention and confirm whether a provisional filing is the right first step for your situation.
Prior-Art Check
Run a quick novelty check on Indian and global databases before you commit to a priority date.
Provisional Drafting
Draft a clear Form 2 provisional specification that describes the invention and supports the widest later claims.
Form Preparation
Prepare Form 1 (application) and the accompanying declarations for the correct applicant type.
E-Filing
File the application on the IPO e-filing portal and secure your application number and priority date.
Priority Date Lock
Confirm your filing date is captured as the priority date and hand over the acknowledgement.
12-Month Tracking
Proactively track the 12-month deadline for filing the complete specification so nothing lapses.
Complete-Spec Handover
Guide you into drafting and filing the complete specification well before the deadline.
What You’ll Receive
What Documents Are Required for a Provisional Filing?
A provisional filing is lighter than a complete filing — a clear description of the invention is enough to secure the date. Keep clean scans (PDF) ready; everything is collected securely online.
Inventor / Applicant
For each inventor & applicant- Full name, address & nationality of every inventor
- Identity proof of the applicant
- Applicant type — individual, startup, small entity or others (affects fee)
- Startup / MSME certificate (if claiming reduced fee)
Invention Details
The technical disclosure- A clear description of the invention — how it works
- Drawings, sketches or flowcharts (if any)
- The problem it solves and its key advantages
- Any prior public disclosure, publication or use
Authorisation & Priority
Where applicable- Assignment / declaration where the applicant is not the inventor
- Power of authority (Form 26) for the patent agent
- Priority document, if claiming Convention priority
- Details of any earlier related filing
File before you disclose
File before any public disclosure — publishing, demoing or selling the invention first can destroy novelty and make it unpatentable.
The 12-month clock starts now
The moment you file a provisional, a 12-month clock starts. The complete specification must be filed within 12 months, or the application is deemed abandoned.
Describe it well
A provisional need not have final claims, but it should describe the invention fully enough to support the claims you will make later — vague provisionals give weak priority.
Startup / small-entity fee
Recognised startups, small entities and natural persons pay substantially lower official fees. Keep your Startup India / MSME certificate handy.
Don’t have all the documents?
We’ll identify what your case needs →How Provisional Patent Filing Works (Step by Step)
The entire application is filed online through the Indian Patent Office e-filing portal at ipindia.gov.in.
Consultation & novelty check
Assess whether a provisional is the right move and run a quick prior-art check before you lock a priority date.
Draft the provisional specification
Prepare a clear Form 2 provisional specification describing the invention, with sketches or diagrams where useful.
Prepare Form 1
Complete Form 1 (application for grant of patent) for the correct applicant type, with the required declarations.
E-file & secure the priority date
File Form 1 with the provisional specification on the IPO e-filing portal — your filing date becomes the priority date.
Get "patent pending" status
Receive the application number and acknowledgement; you can now mark the invention "patent pending".
File the complete specification
Within 12 months, draft and file the complete specification (Form 2) with full claims to carry the application forward.
How Long Does a Provisional Filing Take?
| Stage | Expected Time |
|---|---|
| Novelty check + provisional specification drafting | Depends on complexity |
| Filing acknowledgement (application number & priority date) | On filing |
| Complete specification must be filed | Within 12 months of the provisional |
| Publication, examination & grant | Follow the complete specification |
The provisional itself is filed quickly — the priority date attaches on the day you file. The critical statutory deadline is the 12-month window under the Patents Act to file the complete specification; miss it and the application is deemed abandoned. Publication, examination (Form 18) and grant timelines run from the complete-specification stage.
Key Dates — At a Glance
| Frequency | What Is Due |
|---|---|
| Within 12 Months | File the complete specification (Form 2) with full claims · Miss this window and the application is deemed abandoned · Consider Convention / PCT filing to protect abroad |
| While You Refine | Develop, test and finalise the invention · Keep further improvements documented and dated · Avoid unnecessary public disclosure until protected |
| At the Complete Stage | Draft strong, defensible claims for the complete specification · Request examination (Form 18) within the statutory period · Respond to the First Examination Report (FER) |
| Ongoing | Track prosecution through to grant · Pay annual renewal (annuity) fees once granted · Monitor for infringement of your invention |
Dates are indicative and may change with government notifications. Our team tracks every deadline so you never miss a filing.
Doing It Yourself vs TaxClue
Doing It Yourself
- Judge whether a provisional or direct complete filing suits you
- Run a novelty check before locking a priority date
- Draft a provisional that fully supports your later claims
- Prepare Form 1 and file correctly on the IPO portal
- Track the strict 12-month complete-specification deadline
- Move the case into the complete-specification stage in time
- Risk a weak priority date or an abandoned application
With TaxClue
- Clear advice on provisional vs complete strategy
- Quick prior-art check before you commit
- Provisional drafted to support the widest later claims
- Form 1 prepared and e-filed accurately
- Priority date secured and confirmed
- The 12-month deadline tracked proactively
- Smooth handover into the complete-specification filing
Skip the guesswork.
Let an expert handle it →Common Mistakes That Delay Your Application
TaxClue reviews your documents before filing to reduce avoidable errors.
What Happens After a Provisional Filing?
Within 12 Months
- File the complete specification (Form 2) with full claims
- Miss this window and the application is deemed abandoned
- Consider Convention / PCT filing to protect abroad
While You Refine
- Develop, test and finalise the invention
- Keep further improvements documented and dated
- Avoid unnecessary public disclosure until protected
At the Complete Stage
- Draft strong, defensible claims for the complete specification
- Request examination (Form 18) within the statutory period
- Respond to the First Examination Report (FER)
Ongoing
- Track prosecution through to grant
- Pay annual renewal (annuity) fees once granted
- Monitor for infringement of your invention
Penalties & Consequences
What is at stake if you do not comply
- If the complete specification is not filed within 12 months, the provisional lapses and the priority date is lost
- Publishing, demoing or selling the invention before filing destroys novelty and makes it unpatentable
- A vague provisional that fails to disclose the invention cannot support the priority claim
- If the request for examination (Form 18) is later missed within 31 months, the application is deemed withdrawn
Regulatory Updates 2025–26
- 2024: The Patents (Amendment) Rules 2024 reduced the Request for Examination window to 31 months and give a discount for renewal fees paid in advance for four or more years.
- 2025: Patent applications, examination responses and renewals are filed online on the IP India portal (ipindia.gov.in).
Why Businesses Choose TaxClue
IP-Focused Team
Provisional drafting and priority strategy handled by professionals who work on inventions every day.
Fast Priority Filing
We move quickly to lock your priority date before a disclosure or a competitor beats you to it.
Deadline Tracking
The 12-month complete-specification deadline is tracked proactively so your application never lapses.
100% Online
Everything over WhatsApp / email — no office visits required.
Transparent Fees
A clear quote upfront — official fees billed at actuals, no hidden professional charges.
Confidential
Your invention is handled under strict confidentiality throughout.
Your Documents Deserve Professional Care
- Invention details handled by professionals under strict confidentiality
- Access limited to the team working on your file
- Communication over secure digital channels
- Documents retained only as long as needed for prosecution
Frequently Asked Questions
What is a provisional patent filing?
What is a priority date and why does it matter?
What is the difference between a provisional and a complete specification?
What happens if I do not file the complete specification in 12 months?
Does a provisional filing give me a granted patent?
Can I say my product is "patent pending" after a provisional filing?
Which forms are needed for a provisional filing?
Should I file a provisional or a complete specification directly?
How detailed does a provisional specification need to be?
Can I use an Indian provisional to file abroad?
Can a startup or individual get a fee concession?
What happens if I disclose my invention before the provisional filing?
How much does a provisional patent filing cost in India?
How long do I have to file the complete specification after a provisional?
Does the 20-year patent term run from the provisional or the complete filing?
Can I file more than one provisional and combine them later?
Do I need a patent agent to file a provisional?
Can others oppose my application after a provisional filing?
Official Sources & Legal References
Every legal detail on this page — the forms, the 12-month rule and the priority date — is drawn from primary law and official government sources. Verify them directly:
- IP India — Patents e-filing portalOfficial portal to file patent applications, forms and track status
- Patents Act, 1970 — full textSection 9 (provisional & complete specification) and the governing law · India Code
- Patents Rules, 2003 & formsRules, fee schedule and the prescribed patent forms (1, 2, 26)
- InPASS — Indian patent searchOfficial database to run a prior-art search of Indian patents and applications
Related Guides
Provisional vs Complete Specification
Read guide ArticleProvisional vs Complete: Filing Strategy
Read guide ArticlePatent Filing Timeline: Idea to Grant
Read guide ArticleInside a Patent Specification
Read guide ArticlePatent Search Guide
Read guide ArticlePCT Benefits for Indian Applicants
Read guide ArticleIP Strategy for Startups
Read guideProvisional Patent Filing Resources — All Free
Lock Your Priority Date — File a Provisional Today
Expert-managed provisional patent filing — novelty check, provisional specification drafting, Form 1 e-filing and priority-date lock, with the 12-month complete-specification deadline tracked for you. Consultation, custom quote, zero hidden charges.
Talk to a Patent Expert →