Hat having air chamber

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Description

FIG. 1 is a perspective view of a hat having an air chamber, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top view thereof; and

FIG. 4 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
606982 July 1898 Smyth
2673349 March 1954 Key
2696007 December 1954 Larkin et al.
3072916 January 1963 Henderson
Patent History
Patent number: D247266
Type: Grant
Filed: Aug 11, 1976
Date of Patent: Feb 21, 1978
Inventor: Yutaka Yoshida (Ashigarashimo, Kanagawa)
Primary Examiner: Melvin B. Feifer
Attorney: Norman F. Oblon
Application Number: 5/713,422
Classifications
Current U.S. Class: D/2230
International Classification: D0203;