A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z
- Undeliverable correspondence, returned as—403
- Unintentional delay
- petition based on—1714.01(e)–1714.01(f)(ii)
- statement of—1714.01(e)
- where unintentional delay applies—1714.01(f)–1714.01(f)(ii)
- United States Patent and Trademark Office
- Unity of control—714.05(d);715.03(b);1201.07–1201.07(b)(iv)
- Universal symbols—1202.17–1202.17(e)(vi)
- Unpublished decisions—705.05
- Unscheduled closing of USPTO—309
- Unsigned response to Office action—712.02
- Uruguay Round Agreements—1210.08;Appendix B
- U.S. Postal Service, interruptions of—305.04
- Use dates (See Dates of use)
- Use in commerce
- assertion of—901
- bona fide use in the ordinary course of trade—901.02
- certification marks—1306.02(a)(i)
- collective membership marks—1304.02(a)(i)
- collective trademarks and service marks—1303.01(a)(i)
- commerce that may be lawfully regulated by Congress—901.03
- date of first—903.02
- definition of—901.01
- not required in §44 application—901;1009
- not required in §66(a) application—901;1904.01(d)
- service marks—1301.03–1301.03(b)
- Use of mark