APA (7th ed.) Citation

United States. Patent and Trademark Office. (1976). United States patent. [U.S. Patent and Trademark Office].

Chicago Style (17th ed.) Citation

United States. Patent and Trademark Office. United States Patent. [Washington, D.C.]: [U.S. Patent and Trademark Office], 1976.

MLA (9th ed.) Citation

United States. Patent and Trademark Office. United States Patent. [U.S. Patent and Trademark Office], 1976.

Warning: These citations may not always be 100% accurate.