Calculator

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Description

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.

Referenced Cited
U.S. Patent Documents
D290117 June 2, 1987 Nogami
D296527 July 5, 1988 Chu
Other references
  • Evans, 1980/81, p. 229. Hong Kong Enterprise, Jan. 1985, p. 26. Hong Kong Enterprise, May 1986, p. 46.
Patent History
Patent number: D308984
Type: Grant
Filed: Nov 6, 1986
Date of Patent: Jul 3, 1990
Inventor: William H. K. Chu (Taipei)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Caron D. Veynar
Law Firm: Fleit, Jacobson, Cohn, Price, Holman & Stern
Application Number: 6/927,668
Classifications
Current U.S. Class: With Keyboard (D18/7)