Can I use a certificate of mailing for all types of patent-related correspondence?

While certificates of mailing are widely applicable, they cannot be used for all types of patent-related correspondence. MPEP 512 outlines specific exceptions: The Certificate of Mailing or Transmission procedure does not apply to the filing of a national patent application specification and drawing or other correspondence for the purpose of obtaining an application filing date.…

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What types of correspondence are not eligible for the Certificate of Mailing or Transmission procedure?

While the Certificate of Mailing or Transmission procedure is useful for many types of USPTO correspondence, there are several exceptions. According to 37 CFR 1.8(a)(2), the procedure does not apply to: Filing of national patent application specifications and drawings for the purpose of obtaining an application filing date Filing of correspondence in an international application…

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Can I use a Certificate of Mailing or Transmission for international patent applications?

The use of a Certificate of Mailing or Transmission for international patent applications is limited and depends on the specific type of correspondence. According to the MPEP and 37 CFR 1.8(a)(2)(i)(D)-(F), the certificate procedure does not apply to: The filing of an international application for patent The filing of correspondence in an international application before…

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