Perpetual calendar calculator

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Description

FIG. 1 is a front elevational view of the perpetual calendar calculator of the present invention;

FIG. 2 is a rear elevational view of the perpetual calendar calculator of FIG. 1;

FIG. 3 is a left side elevational view of the perpetual calendar calculator of FIG. 1;

FIG. 4 is a right side elevational view of the perpetual calendar calculator of FIG. 1;

FIG. 5 is a top plan view of the perpetual calendar calculator of FIG. 1; and,

FIG. 6 is a bottom plan view of the perpetual calendar calculator of FIG. 1.

Claims

The ornamental design for a perpetual calendar calculator, as shown and described.

Referenced Cited
U.S. Patent Documents
D323347 January 21, 1992 Vlassich
D365848 January 2, 1996 Thomas
D401272 November 17, 1998 Shih
D410440 June 1, 1999 Carnell
D427629 July 4, 2000 Chu et al.
D434070 November 21, 2000 Lin et al.
D437351 February 6, 2001 Chang et al.
D442210 May 15, 2001 Chan
3800454 April 1974 Anderson
4187629 February 12, 1980 Yamada
4611995 September 16, 1986 Sado
4793634 December 27, 1988 Alloggiamento
4813707 March 21, 1989 Habib
4828290 May 9, 1989 Harris
5560127 October 1, 1996 Thomas
Patent History
Patent number: D450762
Type: Grant
Filed: May 4, 2000
Date of Patent: Nov 20, 2001
Inventor: Henrik Shakhbandaryan (Glendale, CA)
Primary Examiner: Paula A. Mortimer
Application Number: 29/122,793
Classifications
Current U.S. Class: Combined (D19/21)
International Classification: 1903;