Skateboard ramp bowl

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Description

FIG. 1 is a perspective view showing my new design for a skateboard ramp bowl with a portion removed for convenience of illustration.

FIG. 2 is a top plan view showing my new design for the skateboard ramp bowl with a portion removed for convenience of illustration.

FIG. 3 is a sectional view showing my new design for a skateboard ramp taken at 3,3 of FIG. 2.

Referenced Cited
Foreign Patent Documents
453396 September 1936 GBX
Other references
  • Skateboarder, Nov., 1977, p. 112, upper left illustration.
Patent History
Patent number: D256713
Type: Grant
Filed: Jan 10, 1978
Date of Patent: Sep 2, 1980
Inventor: Douglas B. Firestone (San Diego, CA)
Primary Examiner: Melvin B. Feifer
Application Number: 5/868,344
Classifications
Current U.S. Class: D21/242
International Classification: D2103;