MPEP § 2223
Withdrawal of Attorney or Agent
United States Patent and Trademark Office
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A request by an attorney or agent of record to withdraw from a patent will normally be approved only if at least 30 days remain in any running period for response. See also MPEP § 402.06.
A sample form for a request by an attorney or agent of record to withdraw from a patent is set forth below.
Form PTO/SB/83 Request for Withdrawal As Attorney or Agent and Change of Correspondence AddressForm 
Form PTO/SB/83 Request for Withdrawal as Attorney or Agent and Change of Correspondence Address 
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