Calculator with perpetual calendar

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Description

FIG. 1 is a perspective view of the calculator with perpetual calendar in a closed state showing the new design;

FIG. 2 is a front view of the new design in a closed state;

FIG. 3 is a rear view of the new design in a closed state;

FIG. 4 is a left side view of the new design in a closed state;

FIG. 5 is a right view of the new design in a closed state;

FIG. 6 is a top view of the new design in a closed state;

FIG. 7 is a bottom view of the new design in a closed state;

FIG. 8 is a perspective view of the new design in an opened state;

FIG. 9 is a front view of the new design in an opened state;

FIG. 10 is a rear view of the new design in an opened state;

FIG. 11 is a left side view of the new design in an opened state;

FIG. 12 is a right view of the new design in an opened state;

FIG. 13 is a top view of the new design in an opened state; and,

FIG. 14 is a bottom view of the new design in an opened state.

Claims

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

Referenced Cited
U.S. Patent Documents
D147742 October 1947 Bowers
D163586 June 1951 Dingeldein
D274798 July 24, 1984 O'Hara et al.
D292710 November 10, 1987 Woods
D352664 November 22, 1994 Peersmann
D363881 November 7, 1995 Yung
D366621 January 30, 1996 George et al.
D427629 July 4, 2000 Chu et al.
D427630 July 4, 2000 Chu et al.
3827168 August 1974 Mori
5480118 January 2, 1996 Cross
Patent History
Patent number: D437351
Type: Grant
Filed: May 18, 2000
Date of Patent: Feb 6, 2001
Assignee: Limax Electronics Co., Ltd. (Taipei)
Inventors: Shu-Chia Chang (Taipei), William H. K. Chu (Taipei)
Primary Examiner: Martie K. Holtje
Attorney, Agent or Law Firm: Varndell & Varndell, PLLC
Application Number: 29/123,390