What proof is required to show an inventor is unavailable or refusing to sign?
When filing under pre-AIA 37 CFR 1.47, the applicant must provide proof that the nonsigning inventor is unavailable or refusing to sign. According to MPEP 409.03(d): For an unavailable inventor, submit a statement of facts describing the diligent efforts made to find or reach the inventor. Include documentary evidence like Internet searches, certified mail receipts,…
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