What evidence is required to support a petition under pre-AIA 37 CFR 1.47?

To support a petition under pre-AIA 37 CFR 1.47, the following evidence is typically required: A statement of facts signed by someone with firsthand knowledge Documentary evidence such as Internet searches, certified mail return receipts, cover letters of instructions, or telegrams Details of steps taken to locate the nonsigning inventor The MPEP emphasizes: ‘The statement…

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