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Patent It Yourself - PDF Archive

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ChaPter 3 | DOCUMENTATION and the PPA | 59<br />

Comparison of PTO’s Provisional <strong>Patent</strong> Application (PPA)<br />

With Disclosure (or Notebook) Showing Building and Testing<br />

PPA<br />

Plus. Ironclad evidence of date of reduction to practice (RTP)<br />

and inventorship<br />

Plus. No need to build and test invention<br />

Plus. No need to find or show working invention to witnesses<br />

or have them sign<br />

Plus. A technical article can be used as the PPA, provided it<br />

clearly teaches how to make and use the invention<br />

Plus. In case of an interference or other trial, no need to secure<br />

testimony of witnesses<br />

Plus. Can call invention “patent pending”<br />

Plus. If a patent issues from a regular patent application that<br />

is based upon a PPA, the patent will be considered prior art<br />

(against later-filed patent applications) as of the PPA’s filing<br />

date<br />

Plus. If the PTO finds relevant prior art that is earlier than an<br />

RPA, but not earlier than a PPA on which the RPA is based,<br />

it will usually not even cite such prior art against the RPA if<br />

it finds that the PPA clearly discloses the i nvention. Even if<br />

it cites such prior art, the applicant in the RPA can quickly<br />

antedate such art by citing the PPA.<br />

Signed and Dated + Witnessed and Dated<br />

Record of Building and Testing<br />

Negative. Record may be lost or witness may be unreliable or<br />

unavailable<br />

Negative. Must build and test invention<br />

Negative. Must find and show working invention to witnesses<br />

and have them sign<br />

Negative. A technical article cannot be used unless it clearly<br />

teaches how to make and use the invention and is signed,<br />

dated, and witnessed<br />

Negative. In case of an interference or other trial, must secure<br />

testimony of witnesses<br />

Negative. Cannot call invention “patent pending”<br />

Negative. If a regular patent application (RPA) is filed without<br />

being based upon a PPA, the actual filing date of the RPA (not<br />

the date of record) will be considered the date of the patent<br />

for prior art purposes<br />

Negative. If the PTO finds relevant prior art that is earlier<br />

than an RPA, it will cite it against the RPA. The applicant must<br />

compile evidence and submit a declaration to prove building<br />

and testing of the invention prior to the date of such prior art.<br />

Plus. Can be used by foreign inventors to establish a “U.S.<br />

date”<br />

Negative. Must prepare application or paper with full<br />

disclosure teaching how to make and use invention<br />

Negative. Must prepare cover sheet and Application Data<br />

Sheet (ADS) for PTO<br />

Negative. Must send papers and PPA cover sheet with receipt<br />

postcard to PTO or file papers online<br />

Negative. Fee required to file (see Appendix 4). (However, a<br />

PPA’s filing fee is much cheaper than an RPA’s.)<br />

Negative. The RPA—and any foreign applications you wish to<br />

file—must be filed one year from the PPA’s filing in order to<br />

obtain the benefit of such date<br />

Plus. No need to prepare full disclosure so long as record<br />

shows building and testing<br />

Plus. No need to prepare any formal papers<br />

Plus. No need to send or file any forms or papers anywhere<br />

Plus. No fee involved<br />

Plus. If the RPA is filed over a year after the date of building<br />

and testing, it will still be entitled to such date provided an<br />

unreasonable time has not elapsed and the inventor has not<br />

abandoned the invention

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