The USPTO provides several forms for filing express abandonment, depending on the specific circumstances. According to MPEP 711.01, Section V, the following forms are available: Form PTO/AIA/24 (or PTO/SB/24 for pre-AIA applications): For filing a general letter of express abandonment or abandonment in favor of a continuing application Form PTO/AIA/24A (or PTO/SB/24A for pre-AIA applications):…

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