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A Provisional Patent Application is a temporary application filed in the US patent office that is valid for only year after filing.  The advantage of a provisional patent application is that it is much less costly than a non-provisional application, since it does not require any patent claims. Provisional patent applications also do not require a very detailed description of the invention, and only a few clear illustrations depicting the invention can be enough.

 

Provisional patent application provides a patent pending status right after it is filed.  

​​A provisional patent application is recommended when

·       there is an Urgency;

·       a commercial disclosure;

·       submission of paper or a thesis;

·       inventors leaving the company;

·       an accidental disclosure, and

·       there are many competitors.