Combined electronic calculator and checkbook

Description

FIG. 1 is a plan view of a combined electronic calculator and checkbook showing my new design; and

FIG. 2 is a side elevational view taken from the left-hand side in FIG. 1.

The exterior surfaces not shown are plain and unornamented.

Referenced Cited
U.S. Patent Documents
D241381 September 1976 Garnier
D246205 October 25, 1977 Lewis
D258704 March 31, 1981 Kobayashi
3145034 August 1964 Campbell
4222109 September 9, 1980 Siwula
4224675 September 23, 1980 Pinkerman
4225157 September 30, 1980 Hamacher
Patent History
Patent number: D274179
Type: Grant
Filed: Feb 4, 1981
Date of Patent: Jun 5, 1984
Inventor: John T. Siwula (Jamestown, NY)
Primary Examiner: George P. Word
Law Firm: Christel, Bean & Linihan
Application Number: 6/231,587