Oxygen hood

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Description

FIG. is a top plan view of an oxygen hood, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevation thereof;

FIG. 4 is a front elevation thereof; and,

FIG. 5 is a rear elevation thereof. ___

Referenced Cited
U.S. Patent Documents
D247720 April 11, 1978 Wilhelm
D255833 July 8, 1980 Crandall
D262653 January 12, 1982 Koh
3710791 January 1973 Deaton
4181129 January 1, 1980 Cameto et al.
4223669 September 23, 1980 Morledge
Patent History
Patent number: D269369
Type: Grant
Filed: Nov 28, 1980
Date of Patent: Jun 14, 1983
Inventor: John K. Koh (Ann Arbor, MI)
Primary Examiner: Bernard Ansher
Attorney: James M. Deimen
Application Number: 6/211,360
Classifications
Current U.S. Class: D24/11; D24/99
International Classification: D2402;