Wing nut

- The Libman Company
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Description

FIG. 1 is a top, front, and left side perspective view of a wing nut showing the new design;

FIG. 2 is an elevational view of one side thereof; and,

FIG. 3 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
D222528 November 1971 Schwartz
1706317 March 1929 Oakes
3552257 January 1971 Tanabe
5184698 February 9, 1993 Coffenberry
Other references
  • Engineer's Digest, Aug./Sep. 1980, p13, Wing Nut.
Patent History
Patent number: D393589
Type: Grant
Filed: Sep 22, 1995
Date of Patent: Apr 21, 1998
Assignee: The Libman Company (Arcola, IL)
Inventor: Enzo Berti (Venice)
Primary Examiner: Terry A. Wallace
Law Firm: Marshall, O'Toole, Gerstein, Murray & Borun
Application Number: 0/44,353
Classifications
Current U.S. Class: D/8398
International Classification: 0808;