A legal aid organization may be entitled to common-law protection even if it has not registered a federal trademark. Common-law trademark claims apply similar principles and case law to the Lanham Act, so that state and federal courts often rely upon each other’s cases, providing a “common reservoir” of trademark precedent.
Common law protection, however, is often limited to the geographic area in which the mark is used, and the plaintiff in a common law protection suit must prove it is entitled to exclusive use of its trademark. Unregistered common-law marks are protected locally even if someone later federally registers the mark.
According to case law:
Gen. Healthcare Ltd. v. Qashat
, 364 F.3d 332, 336 n.7 (1st Cir. 2004) (citing United Drug Co. v. Theodore Rectanus Co., 248 U.S. 90, 97-98 (1918), which clarifies that trademark rights are confined to territories of use).Gen. Healthcare Ltd. v. Qashat, 364 F.3d 332, 335 (1st Cir. 2004) (citing United Drug Co. v. Theodore Rectanus Co., 248 U.S. 90, 97 (1918), which establishes that “the right to a particular mark grows out of its use, not its mere adoption”)
Gen. Healthcare, 364 F.3d at 336 n.6 (citing Two Pesos, Inc. v. Taco Cabana, Inc., 505 U.S. 763, 768 (1992), which asserts that “[T]he general principles qualifying a mark for registration under the Lanham Act are for the most part applicable in determining whether an unregistered mark is entitled to protection.”)
Two Pesos v. Taco Cabana, 505 U.S. 763, 782 (1992) (Stevens, J., concurring in result) (citing H. R. Rep. No. 944, 76th Cong., 1st Sess., 4 (1939))
Keebler Co. v. Rovira Biscuit Corp.
, 624 F.2d 366, 376 (1st Cir. 1980).Keebler Co.
, 624 F.2d at 376 (quoting Kellogg Co. v. Nat’l Biscuit Co., 305 U.S. 111, 118 (1938)).Keebler Co.
, 624 F.2d at 376 (quoting Joshua Meier Co. v. Albany Novelty Mfg. Co., 236 F.2d 144 (2d Cir. 1956)).McCarthy on Trademarks § 26:4 at 26-9; see Ammon & Person v. Narragansett Dairy Co., 262 F. 880 (1st Cir. 1919); Raxton Corp. v. Anania Assoc., Inc., 635 F.2d 924 (1st Cir. 1980)).