M
- Machine, process or product 806.05(e); 806.05(f); 806.05(g)

- Mail (See also Mail Stop)

- Mail date as filing date 513

- Mail stop 501

- Mailing action 707.12
- In ex parte reexamination 2264

- In inter parte reexamination 2664


- Mailing, Certificate of (See Certificate of mailing or transmission (37 CFR 1.8))

- Maintenance Fee Branch 1501
- Contact information 1730


- Maintenance fees (See also Fee and Refunds) 1730; 2500
- Attorney or agent
- Handling of requests to withdraw 2560

- Revocation of power of attorney 2501; 2560


- Change of correspondence address 2501; 2542

- Credit card used for payment of 2510; 2522

- Due dates for payment 2506

- Duplicate Payment 2532

- Facsimile submission 2510

- Fee address 2540

- Fee amounts 2501; 2520

- Forms 2595

- Information available from Maintenance Fee Branch 1730

- Information required with payment 2515; 2530

- Insufficient 2531

- Internet submission 2510

- Intervening rights in reinstated patents 2591

- Late 2531

- Mailing address for maintenance fee documents 501; 2510

- Mailing address for payments 501

- Maintenance Fee Branch 2501

- Method of payment 2522

- Notices – Expiration, Receipt, Reminder 2575

- Obligation to pay while reissue is pending 1415.01

- Overpayment 2550

- Patents subject to payment of 2504

- Payment informalities 2530

- Petition to accept 2515; 2531; 2590

- Reexamination 2506

- Refusal to accept and record payments, Review of 2580

- Reinstatement, delayed payment 2590
- Unavoidable delay basis 2590

- Unintentional delay basis 2590


- Reissue patents 1415.01; 1443; 2504; 2506; 2520

- Saturday, Sunday or Federal holiday, due on 2504; 2506

- Small entity status requirements 2550

- Special Acceptance 2530

- 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)

- Master classification file (MCF) 902.03(a)

- Material mistake by Office in published PG-Pub 1130

- Materiality of information regarding patentability (See Duty of disclosure)

- Mathematical algorithms 706.03(a); 2106; 2181

- Matter not in original disclosure 608.04(a)

- Means 2181
- Broadest reasonable interpretation 2181

- Equivalent compared to Doctrine of Equivalents 2186

- Obviousness 2183

- Prima facie case of equivalence 2183; 2184

- Related issues under 35 U.S.C. 112, first or second paragraphs 2181; 2185

- Scope of the identification of prior art 2182

- 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 parte reexamination and reissue 2285

- Merger of inter partes reexamination 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 (See Biotechnology)

- 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 (See Correction of patent and Errors)

- Mistake by Office in Pre-Grant Publication 1130

- Mode, Best (See Best 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 (See Interference: Motions)

- Multiple dependent claims

- 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
