What is the procedure when a patent or application file becomes unlocatable?
When a patent or application file cannot be located after a reasonable search, the USPTO has a specific procedure outlined in 37 CFR 1.251. The Office will notify the applicant or patentee and set a time period for compliance with one of the following options: Provide a copy of all correspondence records between the Office…
Read MoreWhat are the time limits for responding to a notice under 37 CFR 1.251?
The time limits for responding to a notice under 37 CFR 1.251 vary depending on whether it’s for an application or a patent: For applications: The Office sets a three-month period for reply, which is extendable under 37 CFR 1.136(a) by up to three additional months, for a maximum of six months. For patents: The…
Read MoreWhat is the procedure when the USPTO cannot locate a patent or application file?
When the USPTO cannot locate a patent or application file after a reasonable search, they follow the procedure outlined in 37 CFR 1.251. The key steps are: The Office notifies the applicant or patentee about the unlocatable file. A time period is set for the applicant or patentee to comply with the notice. The applicant…
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