Trampoline
Description
FIG. 1 is a perspective view of a trampoline showing my new design; and,
FIG. 2 is a side elevational view thereof, the other sides being substantially identical.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
| 219080 | September 1879 | Edwards |
| 863122 | August 1907 | Weber |
| 3502330 | March 1970 | Cheftel |
| 710976 | June 1954 | GBX |
- Hammacher Schlemmer Catalog, p. 59, "Jogger's Trampoline".
Patent History
Patent number: D291712
Type: Grant
Filed: Sep 12, 1984
Date of Patent: Sep 1, 1987
Inventor: Mark Koivisto (St. Louis Park, MN)
Primary Examiner: Charles A. Rademaker
Attorney: Don E. Ferrell
Application Number: 6/649,755
Type: Grant
Filed: Sep 12, 1984
Date of Patent: Sep 1, 1987
Inventor: Mark Koivisto (St. Louis Park, MN)
Primary Examiner: Charles A. Rademaker
Attorney: Don E. Ferrell
Application Number: 6/649,755
Classifications
Current U.S. Class:
D21/191
