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Patent
   D244862
Priority
Sep 25 1975
Filed
Sep 25 1975
Issued
Jun 28 1977
Expiry
Jun 28 1991
Inventors
Mathis, Ba…
Assg.orig
Hewlett-Pa…
Assg.curr
Hewlett-Pa…
Entity
unknown
Referenced by
1
References
2
Maint.:
n/a
The ornamental design for a casing for an electronic calculator, as shown and described.

FIG. 1 is a front perspective view of a casing for an electronic calculator showing my new design, the bottom surface of the casing being substantially plain and unornamented;

FIG. 2 is a side elevational view thereof.
INVENTORS:

Mathis, Barry R.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D624077, Sep 14 2007 MITSUBISHI HEAVY INDUSTRIES MACHINERY SYSTEMS, LTD Electronic toll collection machine
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
227992,
228189,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 25 1975Hewlett-Packard Company(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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