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The ornamental design for a overhead projection system, as shown and described.
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FIG. 1 is a perspective view of an overhead projection system showing the new design for a overhead projection system. As shown, the overhead projection system is oriented upright;
FIG. 2 is a side view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The portions of the article in broken lines are shown for illustrative purposes only and form no part of the claimed design.
Patent | Priority | Assignee | Title |
Patent | Priority | Assignee | Title |
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5035502, | Aug 28 1989 | Transparent calculator for overhead projection | |
D344533, | Sep 29 1990 | Elmo Company, Limited | Overhead projector |
D349715, | Oct 22 1992 | Minnesota Mining and Manufacturing Company | Transmissive type overhead projector |
D365836, | Dec 17 1993 | Elmo Co., Ltd. | Overhead projector |
D435578, | Nov 26 1998 | Elmo Co., Ltd. | Overhead projector |
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Jun 30 2004 | PININFARINA, PAOLO | 3M Innovative Properties Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015586 | /0637 | |
Jul 16 2004 | 3M Innovative Properties Company | (assignment on the face of the patent) | / |
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