Patent
   D291992
Priority
May 31 1985
Filed
May 31 1985
Issued
Sep 22 1987
Expiry
Sep 22 2001

TERM.DISCL.
Assg.orig
Entity
unknown
3
4
n/a
The ornamental design for personal computer keyboard template for displaying operating instructions for software program, as shown and described.

FIG. 1 is a front, top and left side perspective view of a personal computer keyboard template for displaying operating instructions for software program showing my new design, the keyboard being shown in broken lines for illustrative purposes only;

FIG. 2 is a top plan view thereof on an enlarged scale;

FIG. 3 is a front elevational view thereof on an enlarged scale;

FIG. 4 is a bottom plan view thereof on an enlarged scale;

FIG. 5 is a left side elevational view thereof on an enlarged scale;

FIG. 6 is a right side elevational view thereof on an enlarged scale.

Duffin, II, Thorvald E.

Patent Priority Assignee Title
D343391, Feb 14 1991 Portacom Pty. Ltd. Cover plate for touch sensor plug-in module for computers
ER3506,
ER4674,
Patent Priority Assignee Title
4075465, May 19 1976 Sperry Rand Corporation Keyboard overlay
4274081, Aug 11 1978 Hitachi, Ltd. Data input apparatus
4479317, Sep 27 1982 Electrical circuit marking identification plate
4512092, Nov 21 1983 Technical Support Services, Inc. Replacement labels for keyboard
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 01 1900DUFFIN, THORVALD E IITDA, INC , A VIRGINIA CORP ASSIGNMENT OF ASSIGNORS INTEREST 0047300168 pdf
May 31 1985TDA, Inc.(assignment on the face of the patent)
Jun 01 1987TDA, INC ,TALISMAN DEVELOPMENT ASSOCIATES, INC ,MERGER SEE DOCUMENT FOR DETAILS EFFECTIVE DATE: JUNE 1, 19870048770155 pdf
Mar 22 1989THORDATA, INC , A CORP OF DEREDMOND DEVELOPMENT CORP ASSIGNMENT OF ASSIGNORS INTEREST 0052530076 pdf
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