U.S. patent number D334,214 [Application Number 07/741,161] was granted by the patent office on 1993-03-23 for combined clipboard and calculator. Invention is credited to John Gonzales.
United States Patent | D334,214 |
Gonzales | March 23, 1993 |
Inventors: | Gonzales; John (Cicero, IL) |
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Appl. No.: | 07/741,161 |
Filed: | August 7, 1991 |
Current U.S. Class: | D19/88; D10/2; D18/2; D19/90; D19/91 |
Field of Search: | ;D18/2,7 ;D19/65,75,78,86,88,90,91,99,100 ;248/441.1,442.2,451,452,453,454,447.1,456,465 ;40/341-349 |
D240621 | July 1976 | Houser |
D243688 | March 1977 | Keyko et al. |
D284678 | July 1986 | Shamoon |
D284976 | August 1986 | Hung |
D296220 | June 1988 | Hung |
D312663 | December 1990 | Bordwell |
D313819 | January 1991 | Craft, Jr. et al. |
4022993 | May 1977 | Shattuck |
Hong Kong Enterprise Mar. 1989, see p. 186 calculator w/triangular buttons-desk copy. . Hong Kong, Enterprise May 1986 p. 207 see circled clipboard upper right-desk copy. . Hong Kong Enterprise May 1986 p. 288 see model #CB1 circled-left-desk copy.. |
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