Protective case for a calculator or the like

- Zengrange Limited

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Description

FIG. 1 is a top perspective view of a protective case for a calculator or the like showing my new design;

FIG. 2 is an inverted bottom perspective view thereof with the latch partly open;

FIG. 3 is an inverted bottom rear perspective view of FIG. 1;

FIG. 4 is a top rear perspective view of FIG. 1; and

FIG. 5 is a top perspective view thereof in the open position showing both top and bottom surfaces.

Referenced Cited
U.S. Patent Documents
D236488 August 1975 Fossella
D245455 August 16, 1977 Cathey
D275822 October 9, 1984 Catland et al.
4071065 January 31, 1978 Halbich
4259568 March 31, 1981 Dynesen
4322835 March 30, 1982 Ernst et al.
4424899 January 10, 1984 Rosenberg
4458813 July 10, 1984 Tushinsky et al.
Patent History
Patent number: D283138
Type: Grant
Filed: Jul 25, 1983
Date of Patent: Mar 25, 1986
Assignee: Zengrange Limited (Leeds)
Inventor: Christopher J. Hamar (Leeds)
Primary Examiner: George P. Word
Law Firm: Murray, Whisenhunt and Ferguson
Application Number: 6/516,877
Classifications
Current U.S. Class: Housing Or Casing (D18/11); D 3/301