U.S. patent number D291,894 [Application Number 06/647,018] was granted by the patent office on 1987-09-15 for eyeglass retaining cord with adjustable slide. This patent grant is currently assigned to International Tropic-Cal, Inc.. Invention is credited to David Halpern, George Weisenfeld.
United States Patent | D291,894 |
Weisenfeld , et al. | September 15, 1987 |
Inventors: | Weisenfeld; George (Studio City, CA), Halpern; David (Studio City, CA) |
---|---|
Assignee: | International Tropic-Cal, Inc.
(Los Angeles, CA) |
Appl. No.: | 06/647,018 |
Filed: | September 4, 1984 |
Current U.S. Class: | D16/339 |
Field of Search: | ;D16/129 ;D2/234,352,354 ;24/3C,3D,3M,9 ;351/155,156,157,158 ;2/12,13,15 ;351/155-158 ;D11/202,218,78.1 |
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3288547 | November 1966 | Klinger et al. |
3397026 | August 1968 | Spina |
3874776 | April 1975 | Seron |
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