Electronic calculator

- Casio
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Description

FIG. 1 is a top plan view of an electronic calculator showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a bottom plan view thereof the front cover being open; and

FIG. 7 is a perspective view thereof; and

FIG. 8 is a front perspective view thereof in an open position.

Referenced Cited
U.S. Patent Documents
D243250 February 1, 1977 Hazama
D279688 July 16, 1985 Kitai et al.
D293688 January 12, 1988 Yubisui et al.
D301895 June 27, 1989 Hayashi
Other references
  • Radio Shack; p. 167; upper left corner, PC-6, Pocket Computer Examers Office. The Sharper Image; Sep. 1985; p. 42, lower left corner; Data Bank by Casio.
Patent History
Patent number: D309749
Type: Grant
Filed: Oct 16, 1987
Date of Patent: Aug 7, 1990
Assignee: Casio Computer Co., Ltd. (Tokyo)
Inventor: Yukinori Ido (Tokyo)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Caron D. Veynar
Law Firm: Frishauf, Holtz, Goodman & Woodward
Application Number: 7/111,555
Classifications
Current U.S. Class: With Keyboard (D18/7)