Patent
   D473255
Priority
Mar 19 2001
Filed
Mar 19 2001
Issued
Apr 15 2003
Expiry
Apr 15 2017
Assg.orig
Entity
unknown
1
5
n/a
The ornamental design for an inverted projection head for an overhead projector, as shown and described.

FIG. 1 is front and side perspective view of a projection head in accordance with the present invention;

FIG. 2 is a front elevation view of the projection head of FIG. 1.

FIG. 3 is a back elevation view of the projection head of FIG. 1.

FIG. 4 is a right side elevation view of the projection head of FIG. 1.

FIG. 5 is a left side elevation view of the projection head of FIG. 1.

FIG. 6 is top plan view of the projection head of FIG. 1; and,

FIG. 7 is a bottom plan view of the projection head of FIG. 1.

Joss, Michael S., Nelson, Mark T., Cozzolino, Steve, Zuege, Bradford Charles

Patent Priority Assignee Title
D502487, Dec 30 2002 Hunter Optical Co., Ltd. Joint capable of exchanging image projection direction
Patent Priority Assignee Title
5121984, Mar 05 1990 Masking device for use with image projectors
6170954, Feb 18 1999 Elmo Co., Ltd. Overhead projector of the under mirror type
197490,
198514,
D244602, Mar 03 1975 Minnesota Mining and Manufacturing Company Overhead projector
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 19 20013M Innovative Properties Company(assignment on the face of the patent)
Jun 07 2001NELSON, MARK T 3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0119680008 pdf
Jun 08 2001ZUEGE, BRADFORD CHARLES3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0119680008 pdf
Jun 08 2001JOSS, MICHAEL S 3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0119680008 pdf
Jun 21 2001COZZOLINO, STEVE3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0119680008 pdf
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