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Publication numberUSD228137 S
Publication typeGrant
Publication dateAug 14, 1973
Filing dateFeb 4, 1971
Publication numberUS D228137 S, US D228137S, US-S-D228137, USD228137 S, USD228137S
InventorsGeorge E. Chadima
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Data entry unit
US D228137 S
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

United States Patent 0 cc 228,137

Patented Aug. 14, 1973 DATA ENTRY UNIT George E. Chadima, Jr., 3624 Skylark Lane SE., Cedar Rapids, Iowa 52403 Filed Feb. 4, 1971, Ser. No. 112,837

Term of patent 14 years Int. Cl. D14-02 US. Cl. D26-5 C FIG. 1 is a front perspective view of a data entry unit References Cited showing my new design.

FIG. 2 is a side view of the unit shown in FIG. 1. The UNITED STATES PATENTS opposite side view is in all material respects the same as 216799 3/1970 PP D265 that Shown in FIG D. 222,266 10/1971 Morita D265 (5.4)

FIG. 3 is a front view of the unit shown in FIG. 1. The

rear view is the same as the frontview in all material JOEL STEARMAN Primary Examiner respects. L. I. PERLSTEIN, Assistant Examiner I claim:

The ornamental design for a data entry unit, substantially as shown and described.

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US7938589Jun 30, 2006May 10, 2011Research In Motion LimitedKeyboard arrangement
US8259074Aug 29, 2008Sep 4, 2012Research In Motion LimitedKey arrangement for a keyboard
US8419303Sep 16, 2010Apr 16, 2013Research In Motion LimitedKeyboard with overlaid numeric phone keypad