Patent
   D296220
Priority
Jul 05 1985
Filed
Nov 20 1985
Issued
Jun 14 1988
Expiry
Jun 14 2002
Assg.orig
Entity
unknown
15
6
n/a
The ornamental design for a combined calculator and clip board, as shown.

FIG. 1 is a perspective view of a combined calculator and clipboard showing my new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a rear elevational view; and

FIG. 4 is a bottom plan view.

Hung, Danny C. C.

Patent Priority Assignee Title
D307968, Apr 28 1987 Portable receptacle for accommodating rigid refuse bags
D312663, Nov 13 1987 Clipboard
D333743, May 13 1991 Combined restaurant check tray and calculator
D334214, Aug 07 1991 Combined clipboard and calculator
D340581, Apr 30 1991 Body supported holder
D341626, Apr 22 1992 Saunders Manufacturing Company, Inc. Combination clipboard and calculator
D353399, Jan 08 1993 Saunders Manufacturing Co., Inc. Combination clipboard/box and calculator
D359074, Jun 17 1992 Combined clipboard and calculator
D371130, Sep 12 1994 Combined note pad and voice recorder
D398250, Oct 20 1997 Crayola LLC Ruler and drawing stencil
D398864, Oct 20 1997 Crayola LLC Ruler and drawing template
D398865, Oct 20 1997 Crayola LLC Protractor and drawing template
D636440, Dec 15 2009 Tung Yun International Limited Clipboard with calculator
D697553, Apr 16 2013 OFFICEMATE, LLC Clipboard with calculator
D753764, Jun 24 2014 OFFICEMATE, LLC Clipboard
Patent Priority Assignee Title
218720,
234592,
D280081, Jun 14 1983 Combined measuring stick and backscratcher
D284199, May 20 1983 Combined ruler, clock and calculator
D284678, Sep 20 1984 Clipboard with an integral calculator
GB1019723,
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 14 1985CHAN, DANNY C H DAH SUN ELECTRONICS COMPANY LIMITED, ON LOONG FACTORY BUILDING, 7TH FLOOR, FLAT A, 11-13 LUK HOP STREET, SAN PO KONG, KOWLOON, HONG KONG, A COMPANY OF HONG KONGASSIGNMENT OF ASSIGNORS INTEREST 0044920221 pdf
Nov 20 1985Dah Sun Electronics Company Limited(assignment on the face of the patent)
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule