Case for an electronic calculator

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a view in perspective of a case for an electronic calculator showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is the right side elevational view thereof;

FIG. 5 is the left side elevational view thereof; and

FIG. 6 is an end elevational view thereof.

Referenced Cited
U.S. Patent Documents
D231357 April 1974 Meyers et al.
D243251 February 1, 1977 Hazama et al.
D245109 July 19, 1977 Yoshioka
D250063 October 24, 1978 Nishino et al.
Patent History
Patent number: D256472
Type: Grant
Filed: Mar 6, 1978
Date of Patent: Aug 19, 1980
Assignee: Texas Instruments Incorporated (Dallas, TX)
Inventors: Eugene J. Sulek (Lubbock, TX), William J. Lawrence (Lubbock, TX)
Primary Examiner: Louis S. Zarfas
Attorney: Rene' E. Grossman
Application Number: 5/884,344
Classifications
Current U.S. Class: With Keyboard (D18/7)
International Classification: D1801;