Patent
   D292932
Priority
Nov 13 1984
Filed
Nov 13 1984
Issued
Nov 24 1987
Expiry
Nov 24 2001
Assg.orig
Entity
unknown
13
4
n/a
The ornamental design for a demonstration device, as shown and described.

FIG. 1 is a top, front and right side perspective view of a demonstration device showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right side elevational view thereof; and

FIG. 7 is an exploded top, front and right side perspective view thereof.

McGinley, Joseph A.

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Patent Priority Assignee Title
3579858,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Nov 02 1984MC GINLEY, JOSEPH A CODMAN & SHURTLEFF INC A CORP OF MAASSIGNMENT OF ASSIGNORS INTEREST 0043350255 pdf
Nov 13 1984Codman & Shurtleff Inc.(assignment on the face of the patent)
Dec 16 1993Codman & Shurtleff, IncJohnson & Johnson Professional, IncCERTIFIED COPY OF MERGER ATTACHED 6 PP LAST PAGE DOUBLE-SIDED WITH EFFECT FROM JANUARY 1, 19940077090871 pdf
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