Self-powered illuminated signal

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Description

FIG. 1 is a front view of a self-powered illuminated signal showing my new deisgn, the rear being a mirror image;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
2953684 September 1960 MacHutchin et al.
3566125 February 1971 Linhart et al.
3934539 January 27, 1976 Little et al.
3949216 April 6, 1976 Howe
4184194 January 15, 1980 Shofu
4209823 June 24, 1980 Burkdoll
Patent History
Patent number: D274317
Type: Grant
Filed: Jan 6, 1982
Date of Patent: Jun 19, 1984
Assignee: Isotope Technologies Corporation (Greenbelt, MD)
Inventor: Robert E. Nelson (Sterling, VA)
Primary Examiner: Susan J. Lucas
Law Firm: King and Liles
Application Number: 6/337,401