service mark

noun

1. a proprietary term, such as Blue Cross and Blue Shield, American Express, or Planned Parenthood, that is registered with the Patent and Trademark Office. : SM

Word History and Origins

Origin of service mark¹

First recorded in 1945–50

Example Sentences

Penalty for transgression of any of the above rules (fouls) is allowing the opponent a free hit from his service mark.

From Project Gutenberg