How does the filing date of a CPA differ from other applications?

The filing date of a Continued Prosecution Application (CPA) is determined differently from other types of patent applications. For a CPA, the filing date is the date on which a request for a CPA is filed on a separate paper.

The MPEP states: The filing date of a continued prosecution application is the date on which a request on a separate paper for an application under this paragraph is filed.

This means that unlike regular applications where the filing date is typically the date all required components are received, a CPA’s filing date is based solely on when the CPA request is submitted, provided it meets the necessary requirements.

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