Examination Practice and Procedure Under the MPEP
Examination workflow
Examiners issue actions in a defined sequence: restriction requirement, first action on the merits, final rejection, then appeal or RCE. The MPEP is the examiner's operating manual, and questions test its procedural rules: restriction (independent vs. distinct inventions, and the election of species), unity of invention, double patenting (statutory and obviousness-type), and the requirement for a complete reply under 1.111. A reply must address every ground of rejection or the action becomes final.
Key doctrines
Obviousness-type double patenting is cured by a terminal disclaimer; statutory double patenting is not curable. Restriction requires the examiner to explain why the inventions are independent or distinct and to permit rejoinder where appropriate. Interviews can advance prosecution but do not replace a written reply. Notice of allowance follows allowable claims, and issue fee payment plus any required formalities complete the grant.
Traps
A frequent trap is treating a restriction requirement as a rejection; it is not appealable in the same way, and the remedy is election plus later divisional filing. Another is the finality rule: an amendment that raises new issues after final may be entered only at the examiner's discretion. Examiners must give reasons for allowance support; a bare "allowed" is insufficient. Also watch the difference between a rejection and an objection (e.g., drawings or spec formalities).
Rule of thumb
Map every action to one of three categories: rejection (substantive, appealable), objection (formality, fixable), or requirement (restriction/election). Then choose the response: traverse, amend, elect, or appeal. This mapping prevents most procedural mistakes.