MPEP Subject Matter Index (M) – Subject Matter Index

Machine, process or product 806.05(e); 806.05(f); 806.05(g)
Mail (See alsoMail Stop)
1. Address 501
2. Depositing correspondence 502
3. Distribution 501
4. Express 502; 513; 711.03(c)
5. Identification 502; 503
6. Receipt and handling 500
7. Undelivered 707.13; 1303.02
8. Zip code 502
Mail date as filing date 513
Mail stop 501
1. Mail Stop 8 (Solicitor) 501; 1216; 1216.01
2. Mail Stop 10 1232
3. Mail Stop 16 (Refunds) 509.03
4. Mail Stop AF 714.13
5. Mail Stop Assignment Recordation 501; 302.08
6. Mail Stop Conversion 601.01(c)
7. Mail Stop Document Services 103; 501; 1430; 1470; 2222; 2232; 2501; 2622; 2632
8. Mail Stop EBC 403
9. Mail Stop Ex ParteReexam 501; 2222; 2224; 2226; 2231
10. Mail Stop Expedited Design 1504.30
11. Mail Stop Express Abandonment 1002.02(r); 1125
12. Mail Stop Inter partesReexam 501; 2622; 2624; 2631
13. Mail Stop Issue Fee 502; 1306; 1306.02
14. Mail Stop L&R 120
15. Mail Stop M Correspondence 501; 2510
16. Mail Stop MPEP
17. Mail Stop OED 402; 407
18. Mail Stop Patent Ext 501; 1002.02(b); 2754; 2754
19. Mail Stop PCT 501; 1805; 1808; 1821; 1823.02; 1865
20. Mail Stop Petitions 720; 1002.02(b); 1308; 1901.03; 2580; 2590; 2720
21. Mail Stop PGPUB 1126
22. Mail Stop Reissue 1410
23. Mail Stop Sequence 2422.09; 2429
Mailing action 707.12
1. In ex parte reexamination 2264
2. In inter parte reexamination 2664
Mailing, Certificate of (SeeCertificate of mailing or transmission (37 CFR 1.8))
Maintenance Fee Branch 1501
1. Contact information 1730
Maintenance fees (See alsoFee and Refunds) 1730; 2500
1. Attorney or agent
  1. Handling of requests to withdraw 2560
  2. Revocation of power of attorney 2501; 2560
2. Change of correspondence address 2501; 2542
3. Credit card used for payment of 2510; 2522
4. Due dates for payment 2506
5. Duplicate Payment 2532
6. Facsimile submission 2510
7. Fee address 2540
8. Fee amounts 2501; 2520
9. Forms 2595
10. Information available from Maintenance Fee Branch 1730
11. Information required with payment 2515; 2530
12. Insufficient 2531
13. Internet submission 2510
14. Intervening rights in reinstated patents 2591
15. Late 2531
16. Mailing address for maintenance fee documents 501; 2510
17. Mailing address for payments 501
18. Maintenance Fee Branch 2501
19. Method of payment 2522
20. Notices – Expiration, Receipt, Reminder 2575
21. Obligation to pay while reissue is pending 1415.01
22. Overpayment 2550
23. Patents subject to payment of 2504
24. Payment informalities 2530
25. Petition to accept 2515; 2531; 2590
26. Reexamination 2506
27. Refusal to accept and record payments, Review of 2580
28. Reinstatement, delayed payment 2590
  1. Unavoidable delay basis 2590
  2. Unintentional delay basis 2590
29. Reissue patents 1415.01; 1443; 2504; 2506; 2520
30. Saturday, Sunday or Federal holiday, due on 2504; 2506
31. Small entity status requirements 2550
32. Special Acceptance 2530
33. Status requests 1730; 2570
Mandatory Classification 903.07
Manual, authority of
Manual, subscription address
Manual of Classification ; 902.01
Manuscript decision 707.06
Margin, application papers 608.01
Mark of applicant 605.04(d)
Marking in application, erasing at allowance 1302.01
Marking, Security 121
Markush claim 803.02; 2173.05(h); 2173.05(o)
1. Antedating reference for 715.03
2. Supporting disclosure 608.01(p); 2163.05; 2164.03
Master classification file (MCF) 902.03(a)
Material mistake by Office in published PG-Pub 1130
Materiality of information regarding patentability (SeeDuty of disclosure)
Mathematical algorithms 706.03(a); 2106; 2181
Matter not in original disclosure 608.04(a)
Means 2181
1. Broadest reasonable interpretation 2181
2. Equivalent compared to Doctrine of Equivalents 2186
3. Obviousness 2183
4. Prima facie case of equivalence 2183; 2184
5. Related issues under 35 U.S.C. 112, first or second paragraphs 2181; 2185
6. Scope of the identification of prior art 2182
7. Single means claim 2164.08(a); 2181
Means plus function limitations 706.02(m); 2106; 2111.01; 2114; 2181 - 2186
Mechanical search 719.05
Memorandum, citation 707.06
Merger of ex partereexamination and reissue 2285
Merger of inter partesreexamination and reissue 2686.03
Merits, Appeal to Board of Patent Appeals and Interferences
Method of making and apparatus or product 806.05(e); 806.05(f)
Metric (S.I.) system usage 608.01
Microorganisms (SeeBiotechnology)
Microorganisms, deposit of 1823.01; 2402 - 2411.05
Microorganisms, patentability of 706.03(a); 2105; 2164.06
Militarily Critical Technology List (MCTL) 120
Military officer notary 604.03(a)
Minor, inventor 409
Misjoinder, Effect on patent 805
Misjoinder of inventors 201.03; 1402; 1412.04; 1481
Mistake (SeeCorrection of patent and Errors)
Mistake by Office in Pre-Grant Publication 1130
Mode, Best (SeeBest Mode)
Mode of operation 608.01(h)
Model 608.03
Model, return 608.03(a)
Model at interview 713.08
Model filed in priority country 201.14(b)
Months, foreign language names 901.05(a)
Motions in interferences (SeeInterference: Motions)
Multiple dependent claims
1. Fee calculation 607; 608.01(n)
2. Handling 608.01(n)
3. Restriction practice 608.01(n)
Multiple papers on same issue in protest 1901.07(a)
Multiplicity of claims 408; 707.07(g); 714.16; 2173.05(h); 2173.05(n)
Multiplicity of species 806.01; 808.01(a)
Munitions Lists of the International Traffic Arms Regulation (ITAR) 120