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Patent
   D308984
Priority
Nov 06 1986
Filed
Nov 06 1986
Issued
Jul 03 1990
Expiry
Jul 03 2004
Inventors
Chu, Willi…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
4
References
2
Maint.:
n/a
The ornamental design for a calculator, as shown and described.

FIG. 1 is a top perspective view of a calculator showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 4 is a front elevational view thereof, the rear elevational view being a mirror image thereof;

FIG. 5 is a bottom plan view thereof.
INVENTORS:

Chu, William H. K.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D326471, Oct 24 1990 Datel Electrocraft Corporation Calculator
D337602, May 27 1992 Data Electrocraft Corp. Calculator
D337603, May 27 1992 Data Electrocraft Corp. Calculator
D887404, May 18 2018 Hewlett-Packard Development Company, L.P.; HEWLETT-PACKARD DEVELOPMENT COMPANY, L P Computer
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
D290117, Sep 04 1984 Kanda Tsushin Kogyo Co., Ltd. Telephone
D296527, Jul 26 1985 Digital clock
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