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Manual of Patent Examining Procedure (MPEP)

Chapter 2500

Maintenance Fees

United States Patent and Trademark Office

2501Introduction 2502-2503[Reserved]2504Patents Subject to Maintenance Fees 2505[Reserved]2506Times for Submitting Maintenance Fee Payments 2507-2509[Reserved]2510Submission of Maintenance Fee Payments and Documents 2511-2514[Reserved]2515Information Required for Submission of Maintenance Fee Payment 2516-2519[Reserved]2520Maintenance Fee Amounts 2521[Reserved]2522Methods of Payment 2523-2529[Reserved]2530Special Acceptance of Maintenance Fee Payments Containing Informalities 2531Payment Late or Insufficient 2532Duplicate Payments 2533-2539[Reserved]2540Fee Address for Maintenance Fee Purposes 2541[Reserved]2542Change of Correspondence Address 2543-2549[Reserved]2550Entity Status Discounts 2551-2559[Reserved]2560Revocation of Power of Attorney and Withdrawal of Attorney 2561-2569[Reserved]2570Maintenance Fee Payment Status Requests 2571-2574[Reserved]2575Notices 2576-2579[Reserved]2580Review of Decision Refusing to Accept and Record Payment of a Maintenance Fee Filed Prior to Expiration of Patent 2581-2589[Reserved]2590Acceptance of Delayed Payment of Maintenance Fee in Expired Patent to Reinstate Patent 2591Intervening Rights in Reinstated Patents 2592-2594[Reserved]2595Forms