Foldable portable overhead projector
United States Patent D322264
US Patent References:
/D170633.html
Gerald - October, 1953 - D170633

Opaque and slide projection apparatus
Ceroni - February, 1942 - 2273936

Image projecting apparatus
Fitz Gerald - September, 1955 - 2718171

/3124035.html
Lucas - March, 1964 - 3124035

Portable overhead projecting apparatus
Appeldorn et al. - February, 1965 - 3167998


Inventors:
Jewison, Charles B. (Batavia, IL)
Application Number:
D/415117
Publication Date:
12/10/1991
Filing Date:
09/29/1989
View Patent Images:
Download PDF D322264 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Dukane Corporation (St. Charles, IL)
Primary Class:
D16/232
Other Classes:
D16/229
Field of Search:
D16/221, D16/225, D16/229, D16/232, 353/61, 353/66, 353/96g30, 353/119, 353/122, 353/DIG.3-5
US Patent References:
3285126Desk level overhead projectorNovember, 1966Lucas353/37
3366005Portable dual display plane projector apparatusJanuary, 1968Benedict353/98
3653754OVERHEAD PROJECTORApril, 1972Yamanaka354/61
3979160Compact overhead projectorSeptember, 1976Anderson et al.353/63
4449800Portable overhead projectorMay, 1984De Longis et al.353/119
4588271Overhead projectorMay, 1986Emura353/66
4696557Collapsible overhead projectorSeptember, 1987Tomizuka353/66
4728184Foldable transparency enlarger for overhead projectorMarch, 1988Kyhl353/96
4776688Overhead projectorOctober, 1988Ushiro et al.353/66
4938587Foldable optical apparatusJuly, 1990Namioka et al.353/66
4968134Overhead projectorNovember, 1990Shimizu et al.353/119
Primary Examiner:
Feifer, Melvin B.
Assistant Examiner:
Aronovich, Adir
Attorney, Agent or Firm:
Emrich & Dithmar
Claims:
1. The ornamental design for a foldable portable overhead projector, as shownand described.

Description:

FIG. 1 is a top plan view of a foldable portable 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 side elevation view thereof;

FIG. 5 is an opposite side elevational view of that shown in FIG. 4;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top plan view of the overhead projector in an unfolded condition, taken at a reduced scale;

FIG. 8 is a front elevational view thereof;

FIG. 9 is a side elevational view thereof;

FIG. 10 is an opposite side elevational view of that shown in FIG. 9;

FIG. 11 is a rear elevational view thereof;

FIG. 12 is a bottom plan view thereof;

FIG. 13 is a top, front perspective view thereof, taken toward the side of FIG. 4, the overhead projector being in the condition illustrated in FIG. 1; and

FIG. 14 is a top, front perspective view thereof, taken from the side of FIG. 9, the overhead projector being in the unfolded condition of FIG. 7.