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Printers Ink Statute. A model statute drafted in 1911 and adopted in a number of states making it a misdemeanor to print an advertisement that contains a false or deceptive statement. [Blacks Law 8th]

printed-matter doctrine. Patents. The rule that printed matter may not be patented unless it is a physical part of a patentable invention. • For example, the doctrine has been used to deny patents for systems of representing sheet music and for methods of compiling directories. But it cannot be used to deny a patent for…

print. 1. Copyright. The impression made in a material by a die, mold, stamp, or the like; a distinctive stamped or printed mark or design. 2. FINGERPRINT. [Blacks Law 8th]

principle of retribution. See LEX TALIONIS. [Blacks Law 8th]

principle of nonintervention. See NONINTERVENTION. [Blacks Law 8th]

principle of legality. See LEGALITY(2). [Blacks Law 8th]

principle of finality. See FINALITY DOCTRINE. [Blacks Law 8th]

principle, n. A basic rule, law, or doctrine. [Blacks Law 8th]

principal right. See RIGHT. [Blacks Law 8th]

Principal Register. Trademarks. The list of distinctive marks approved for federal trademark registration. • The register is maintained by the U.S. Patent and Trademark Office. Only marks that are strong, distinctive, and famous are listed. 15 USCA § 1052. [Cases: Trade Regulation 151.C.J.S. Trade-Marks, Trade-Names, and Unfair Competition §§ 147, 153.] [Blacks Law 8th]