Light box assembly for an overhead projector

- Buhl Industries
Description

FIG. 1 is a perspective view of a light box assembly for an overhead projector showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D150317 July 1948 Roysher
D217103 April 1970 Field et al.
D219405 December 1970 Nemesnyik
D244602 June 7, 1977 Mango et al.
D245165 July 26, 1977 Drake
3247762 April 1966 Peters
3542463 November 1970 Klein
4089599 May 16, 1978 Kuboshima
Foreign Patent Documents
2060193 April 1981 GBX
Patent History
Patent number: D307030
Type: Grant
Filed: Apr 10, 1987
Date of Patent: Apr 3, 1990
Assignee: Buhl Industries (Fair Lawn, NJ)
Inventor: Henry Kyhl (Englewood, NJ)
Primary Examiner: Charles A. Rademaker
Assistant Examiner: Adir Aronovich
Law Firm: Darby & Darby
Application Number: 7/36,965