Air vent attachment for crash helmets

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Description

FIG. 1 is a top plan view of an air vent attachment for crash helmets showing my new design;

FIG. 2 is a top perspective view thereof; and

FIG. 3 is a bottom perspective view thereof.

Referenced Cited
U.S. Patent Documents
D136471 October 1943 Wulsin
D246681 December 20, 1977 Hursh
3806023 April 1974 Barnett
3838466 October 1974 Poirier
3952910 April 27, 1976 Wheeler
4101980 July 25, 1978 Stepan et al.
4141085 February 27, 1979 Adams, Sr.
Patent History
Patent number: D279515
Type: Grant
Filed: Feb 9, 1983
Date of Patent: Jul 9, 1985
Inventor: Calvin P. Peyton (Klamath Falls, OR)
Primary Examiner: Carmen H. Vales
Attorney: Eugene D. Farley
Application Number: 6/465,199
Classifications
Current U.S. Class: D/2233; D/2260