Provisional to Non-Provisional

The 12-Month Deadline

• A provisional patent application automatically expires 12 months from its filing date (35 U.S.C. § 111(b)(5))
• The provisional is never examined and never issues as a patent
• To preserve the provisional's filing date, you must file a non-provisional application that claims priority to the provisional BEFORE the 12-month anniversary of the provisional's filing date

Missing the Deadline

• If the non-provisional is not filed within 12 months, the provisional expires
• The provisional's filing date is permanently lost as a priority date
• Any public disclosures made in the 12-month window are now prior art (one year of the § 102(b)(1) grace period has been consumed)
• The invention may still be patentable if no prior art arose in the window, but the earlier effective filing date is gone

(1) Claiming Priority in an Ads

• File a new non-provisional application with an Application Data Sheet (ADS) that identifies the provisional application by serial number, filing date, and country
• The ADS priority claim creates the § 119(e) relationship
• The non-provisional NEED NOT be filed on the same day as the provisional expired — it must be filed BEFORE the 12-month anniversary

(2) Continuation of Provisional

• Technically the non-provisional 'claims the benefit of' the provisional under § 119(e) rather than being a continuation
• The patent family terminology is different from § 120 continuations

The Non-provisional Specification

• The non-provisional must have a complete specification (description; claims; abstract; drawings)
• The provisional specification can be incorporated by reference or used as the basis for the non-provisional specification
• It is common to file a non-provisional with the same specification as the provisional + new material added

Filing Date

• The non-provisional's own filing date is its actual filing date (not the provisional's)
• The effective filing date for prior art purposes is the earlier provisional filing date (for claims that are fully supported by the provisional).

The Written Description Requirement for Priority

• Each CLAIM in the non-provisional that seeks the provisional's filing date must be supported by written description in the provisional that meets the § 112 written description and enablement requirements
• If a claim in the non-provisional was NOT described in the provisional (or was only partially described), that claim does NOT get the provisional's priority date
• Its effective filing date is the non-provisional's actual filing date

Ads Claim Specifics

• The ADS must explicitly identify the provisional by: serial number (e.g., 63/123,456)
• Filing date
• Country (US)
• The priority claim must be made in the application data sheet (ADS) or in the application itself before the patent issues

But

• Claims directed to the NEW subject matter (not supported by the provisional) have the NON-PROVISIONAL's filing date as their effective filing date
• Anything disclosed publicly between the provisional and non-provisional dates is prior art against these new claims

Common Mistake — Provisional not Enabling

• A skimpy provisional that does not fully describe how to make and use the invention may fail to support key claims
• When that happens, a competitor who independently filed a proper application after the provisional but before the non-provisional may have priority to those claims

Multiple Provisionals

• A non-provisional can claim priority from MULTIPLE provisionals filed within the 12-month window
• Each claim is traced back to the earliest provisional that supports it

Minimum USPTO Requirements

• A specification (description of the invention)
• Any necessary drawings
• A cover sheet with inventor names
• Filing fee ($320 large entity; $160 small entity; $80 micro-entity)

No Formal Claims Required

• Provisionals do NOT require formal claims (this is the primary advantage over non-provisionals)
• However, you SHOULD include informal claims (e.g., 'What is claimed is: 1. A method comprising...') to help define the scope of what you are disclosing

Must Have

• Complete description of the invention (how to make it; how to use it)
• All embodiments and alternatives
• Data or working examples if available
• Description of what problem the invention solves
• Why existing approaches are inadequate
• Detailed description of at least the best mode
• All variations and permutations the inventor has considered

Drawings

• Include all relevant drawings
• Even rough sketches are acceptable for a provisional
• More detail is always better

Alternative Embodiments

• Patent protection often comes from claiming alternative ways to implement the invention
• The provisional should describe ALL alternatives, not just the preferred embodiment

If You Have Claims in a Draft Application

• Include them in the provisional
• Claims define what is protected
• If you have them, include them

What not to do

• A VERY THIN provisional (two-page description, no drawings, vague enablement) is better than nothing but may provide weak priority support
• Claims filed in the non-provisional that are not clearly supported by the provisional will not get the provisional's priority date
• In a competitive race to file (common in AI; biotech; semiconductor), a weak provisional can result in losing to a well-described provisional filed by a competitor on the same day.

Claiming Multiple Provisionals

• A single non-provisional can claim priority to multiple provisional applications, provided: each provisional was filed within 12 months of the non-provisional's filing date
• Each priority claim is specifically identified in the ADS

Example

• Provisional 1 filed January 2024 (core technology)
• Provisional 2 filed June 2024 (improved embodiment)
• Non-provisional filed December 2024
• The non-provisional claims priority to both provisionals
• Claims supported by Provisional 1 get January 2024 as effective filing date
• Claims supported only by Provisional 2 get June 2024

Rolling Provisional Strategy

• Some companies with rapid R&D file a new provisional every 3-6 months to keep capturing new developments
• The non-provisional must be filed before the FIRST provisional expires (12 months from Provisional 1's filing date)
• All provisionals filed in that window can be claimed

PCT Application with Multiple Provisionals

• A PCT application can claim priority to multiple US provisional applications
• The PCT application can be filed up to 12 months after the earliest provisional's filing date
• The PCT application then enters national/regional phase in each target country
• Country-phase entry within 30/31 months of the earliest priority date (PCT) or of the provisional filing date (some countries)

Continuation Strategy After Provisional

• Instead of converting the provisional to a non-provisional, the inventor can file: a non-provisional as a CONTINUATION (§ 120) of the provisional — same priority date for supported claims
• A CONTINUATION-IN-PART (CIP) — adds new matter
• Claims to new matter have the CIP filing date
• PCT with the provisional priority, then file US national phase application as a continuation

Provisional to International Patent Application

• PCT Rule 4.10 allows claiming priority to a provisional in a PCT application
• The PCT application then matures into applications in each designated country
• All countries get the benefit of the provisional's filing date for claims that were supported by the provisional.

Additional R&D

• Use the provisional's priority date to continue developing the invention
• Any additional data
• Embodiments
• Or improvements can be added to the non-provisional (though they will not get the provisional's priority date — they get the non-provisional's date)

Prior Art Search

• Conduct a thorough prior art search to understand what prior art exists
• Use the results to shape claim language in the non-provisional

Market Validation

• The priority date is secured
• Now determine if the invention is commercially valuable before investing $15,000-$50,000+ in non-provisional prosecution

Convert to Non-provisional

• The invention is complete and commercially viable
• You want to enter prosecution
• The 12-month deadline approaches

File a New Provisional Instead

• The invention has evolved substantially
• You want more time at lower cost
• You want to capture the new developments

Key Risk

• If you file a NEW provisional instead of a non-provisional, you LOSE the original provisional's priority date
• All prior art that arose after the original provisional's filing date is now prior art (since there is no non-provisional in the family)
• This strategy works when: NO prior art arose between the provisional filings
• The invention evolved significantly (and the original provisional's claims are less important)
• The original provisional's disclosure is included in the new provisional (carrying forward the description)

Claim Scope Planning

• Work with patent counsel during the 12-month window to draft claims that maximize protection
• Consider independent claims (broad) and dependent claims (specific embodiments)
• Plan the claim hierarchy before filing.