Can an express abandonment be withdrawn or revoked?

Generally, an express abandonment cannot be withdrawn or revoked once it has been recognized by the Office. The MPEP 711.01 states: “A letter of express abandonment which is personally delivered to the Office on a Saturday, Sunday, or federal holiday within the District of Columbia, will be deemed to be received on the next succeeding…

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How does a power of attorney by the assignee affect previous powers of attorney in pre-AIA applications?

In pre-AIA patent applications (filed before September 16, 2012), a power of attorney given by the assignee of the entire interest has significant implications for previous powers of attorney. As stated in the MPEP: A power of attorney by the assignee of the entire interest revokes all powers given by the applicant and prior assignees…

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How can an applicant revoke a power of attorney?

How can an applicant revoke a power of attorney? An applicant can revoke a power of attorney by submitting a new power of attorney (Form AIA/82 for applications filed on or after September 16, 2012, or Form PTO/SB/80 for applications filed before September 16, 2012) or by submitting a revocation signed by the applicant. As…

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