M
- Madrid Protocol (See also Extension of protection of international registration to the United States, Registered extension of protection, and §66(a) application) 1900
- Maintenance of registration 1602 - 1602.04
- Manner of use of mark (See Method-of-use)
- Mark drawing code 807.18
- Material alteration 807.03(d); 807.14 - 807.14(f); 1604.13; 1609.02(a)
- Material difference between mark on drawing and mark in foreign registration 807.12(a) - 807.12(a)(iii); 807.12(b); 1011.01
- Meaning of term in mark, inquiry as to 808.01(a)
- Membership mark (See Collective membership mark)
- Mere descriptiveness (See Descriptiveness, mere)
- Merger, documents of 503.02
- Method-of-use 905
- Minor as applicant 803.01
- "Misspelled" words 1209.03(j); 1213.08(c)
- Mistake in applicant’s name, correction of 1201.02(c)
- Mistake in registration, correction of 1609.10 - 1609.10(b)
- Model or grade designation 1202.16 - 1202.16(c)(v)(B);
- More than one mark 202.01; 807.01
- Motion marks 807.11; 904.03(l)
- Moving goods/services between companion applications 1402.08
- Multiple copies of papers should not be filed 302.02
- Multiple drawings 202.01; 807.01
- Multiple filing bases 806.02 - 806.02(f)
- Multiple-class application (See Combined application)
- Musical performer/group names 1202.09; 1202.09(a); 1301.02(b)
- "Mutilation" of mark 807.12(d)