U.S. patent number D290,026 [Application Number 06/741,314] was granted by the patent office on 1987-05-26 for marble game ramp. This patent grant is currently assigned to Discovery Toys, Inc.. Invention is credited to William J. Wichman.
United States Patent | D290,026 |
Wichman | May 26, 1987 |
Inventors: | Wichman; William J. (Glendora, CA) |
---|---|
Assignee: | Discovery Toys, Inc. (Pleasant
Hill, CA) |
Appl. No.: | 06/741,314 |
Filed: | June 4, 1985 |
Current U.S. Class: | D21/564 |
Field of Search: | ;D21/59,143,12,19 ;446/168,170,171,173 |
D208789 | October 1967 | Kuhn |
D219466 | December 1970 | Miller |
D230291 | February 1974 | Karen |
D280428 | September 1985 | Kennedy et al. |
2838870 | June 1958 | Morse |
3946516 | March 1976 | Wirth |
1405105 | Jul 1975 | GB | |||
Childcraft Toy Catalog, p. 23; Item B. Marble Ramp. . "Marble Magic" from Discovery Toys Catalog (Spring 1985). . Kiddiecraft Super Helta Skelta, copied from Toy Box. . Childcraft "Tobaga" from Childcraft Fall 1984 Catalog. . Toys to Grow On "Build & Roll Raceway", Fall 1984 Catalog. . Bear Creek "Marble Race" Fall 1984 Catalog.. |
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