Patent
   D256370
Priority
Jul 12 1978
Filed
Jul 12 1978
Issued
Aug 12 1980
Expiry
Aug 12 1994
Assg.orig
Entity
unknown
12
6
n/a
The ornamental design for a case for hand-held electronic calculator, substantially as shown and described.

FIG. 1 is a view in perspective of a case for a hand-held calculator showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right-side elevational view thereof, the left-side elevational view thereof being essentially a mere image thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a rear elevation view of a case for a hand-held calculator showing a modified form of our new design; and

FIG. 7 is a left side elevational view thereof, the right side being a mirror image and the front being the same as FIG. 2.

Ichikawa, Shinpei, Welch, Robert A.

Patent Priority Assignee Title
10703557, Jun 07 2017 Illinois Tool Works Inc. Drums for transporting and feeding wire
D269276, Dec 24 1980 Sharp Corporation Electronic calculator
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D892208, Jul 13 2018 Casio Keisanki Kabushiki Kaisha Electronic calculator
D898818, Nov 12 2018 Casio Keisanki Kabushiki Kaisha Electronic calculator
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ER6616,
ER98,
Patent Priority Assignee Title
4158230, Oct 15 1976 Sharp Kabushiki Kaisha Electronic calculator with no protruding key tops
230404,
241381,
D243535, Nov 28 1975 Sharp Kabushiki Kaisha Electronic calculating machine
D247391, Jan 14 1976 Sharp Kabushiki Kaisha Electronic calculating machine
D249093, Feb 23 1977 Sharp Kabushiki Kaisha Electronic calculating machine
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Jul 12 1978Texas Instruments Incorporated(assignment on the face of the patent)
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