Principal Register Law and Legal Definition

“In general, the principal register of patents and trademarks contains those marks that in fact function as a trademark to identify and distinguish goods.” Kohler Co. v. Moen, Inc., 1992 U.S. Dist. LEXIS 8438 (N.D. Ill. Mar. 27, 1992) “The term principal register refers to the register provided for by sections 1051 through 1072 under title 15 of the United States Code Service [15 USCS §§ 1051-1072].” 15 USCS § 1127