Conditioned air vestibule

- HCR Incorporated
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Description

FIG. 1 is a front perspective view of a conditioned air vestibule showing my new design, the rear perspective view being substantially identical thereto;

FIG. 2 is a top plan view thereof; and

FIG. 3 is a side elevation view thereof, the opposed side being substantially identical thereto.

Referenced Cited
U.S. Patent Documents
3112686 December 1963 Peterson
3115818 December 1963 Smith
3218952 November 1965 Gygax
3270655 September 1966 Guirl et al.
3859900 January 1975 Fordsmand
4074620 February 21, 1978 Jansson
Patent History
Patent number: D264751
Type: Grant
Filed: Apr 14, 1980
Date of Patent: Jun 1, 1982
Assignee: HCR Incorporated (Falls Church, VA)
Inventor: George R. Smith (Brookeville, MD)
Primary Examiner: A. Hugo Word
Attorney: James L. Bean
Application Number: 6/140,200
Classifications
Current U.S. Class: D23/140; D23/151; D25/48; Surround For Door Window, Panel, Etc. (10) (D25/60)
International Classification: D2304;