Airfoil fin for surfboards

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Description

FIG. 1 is a perspective view of an airfoil fin for surfboards showing my new design, the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left side elevation view thereof, the right side elevation view being a mirror image of that shown;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
4320546 March 23, 1982 Knox
4325154 April 20, 1982 Collum, Jr.
4421492 December 20, 1983 Leva
4561371 December 31, 1985 Kelley et al.
Foreign Patent Documents
85/03237 August 1985 WOX
Patent History
Patent number: D291715
Type: Grant
Filed: Oct 29, 1985
Date of Patent: Sep 1, 1987
Inventor: Denice C. Alpine (Canoga Park, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Application Number: 6/792,581
Classifications
Current U.S. Class: D21/236; Element Or Attachment (5) (D12/317)