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Patent
   D275964
Priority
Feb 25 1982
Filed
Aug 23 1982
Issued
Oct 16 1984
Expiry
Oct 16 1998
Inventors
Bellini, M…
Assg.orig
ING C OL…
Assg.curr
Ing. C. Ol…
Entity
unknown
Referenced by
2
References
2
Maint.:
n/a
The ornamental design for an electronic calculator, substantially as shown and described.

FIG. 1 is a front and right perspective view of an electronic calculator showing my new design;

FIG. 2 is a rear and left perspective view thereof; and

FIG. 3 is a left view thereof.
INVENTORS:

Bellini, Mario

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D290373, Jul 18 1984 Sharp Corporation Electronic calculator
D856411, Sep 21 2017 Casio Keisanki Kabushiki Kaisha Electronic calculator with printer
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
4064782, May 06 1976 Electronic music display device
4158230, Oct 15 1976 Sharp Kabushiki Kaisha Electronic calculator with no protruding key tops
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 08 1982BELLINI, MARIOING C OLIVETTI & C , S P A , A CORP OF ITALYASSIGNMENT OF ASSIGNORS INTEREST 0040380513 pdf
Aug 23 1982Ing. C. Olivetti & C., S.p.A.(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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