What is a confirmation number in a patent application?

A confirmation number is a four-digit number assigned to each newly filed patent application. It is used in combination with the application number to verify the accuracy of the application number on correspondence filed with the USPTO. This helps avoid misidentification due to transposition errors. The MPEP states: ‘The confirmation number is a four-digit number…

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How should correspondence be addressed for matters not specific to patents or trademarks?

For correspondence that is not specific to patents or trademarks, such as requests for certified copies or assignment recordation, the general mailing address is: Director of the United States Patent and Trademark OfficeP.O. Box 1450Alexandria, VA 22313-1450 This address should be used for: Patent and trademark documents sent to the Assignment Division for recordation (Mail…

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Who receives USPTO correspondence after a patent practitioner’s death?

After the USPTO is notified of a patent practitioner’s death, correspondence is sent to two parties: The office of the deceased practitioner The person who originally appointed the deceased patent practitioner This dual notification ensures that both the practitioner’s office and the original appointer are aware of ongoing patent matters and can take appropriate action.

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Can a legal assistant or secretary sign correspondence on behalf of a patent practitioner?

Can a legal assistant or secretary sign correspondence on behalf of a patent practitioner? No, a legal assistant or secretary cannot sign correspondence on behalf of a patent practitioner. The MPEP 502.02 clearly states: ‘The signature of a practitioner on correspondence filed with the USPTO must be a handwritten signature or an S-signature personally signed…

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What should I do if I don’t have any record of correspondence with the USPTO for an unlocatable file?

If you don’t possess any record of correspondence with the USPTO for an application, patent, or other proceeding that is the subject of an unlocatable file notice, you must still respond to the notice. According to 37 CFR 1.251(a)(3): If applicant or patentee does not possess any record of the correspondence between the Office and…

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What are the signature requirements for patent practitioners in correspondence with the USPTO?

What are the signature requirements for patent practitioners in correspondence with the USPTO? Patent practitioners (e.g., registered attorneys or agents) must follow specific signature requirements when corresponding with the USPTO: They must personally sign correspondence using either a handwritten signature or an S-signature. An S-signature is inserted between forward slash marks and includes the practitioner’s…

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