Desk calculator with perpetual calendar

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Description

FIG. 1 is a perspective view of the desk calculator with perpetual calendar in an opened state, showing the new design;

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

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

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

FIG. 5 is a right side view of the new design in an opened state;

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

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

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

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

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

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

FIG. 12 is a right side view of the new design in a closed state;

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

FIG. 14 is a bottom of the new design in a closed state.

Referenced Cited
U.S. Patent Documents
D116453 September 1939 Trollen
D147742 October 1947 Bowers
D163586 June 1951 Dingeldein
D182405 April 1958 Elliott
D292715 November 10, 1987 Hill
D382007 August 5, 1997 Peersmann
D383778 September 16, 1997 Greenwood
D410251 May 25, 1999 Murrell
2782539 February 1957 Baker
2829457 April 1958 Marston
Patent History
Patent number: D427237
Type: Grant
Filed: Oct 26, 1999
Date of Patent: Jun 27, 2000
Assignee: Limax Electronics Co., Ltd. (Taipei)
Inventors: William H. K. Chu (Taipei), Min-Hua Lin (Taipei)
Primary Examiner: Martie K. Holtje
Law Firm: Dougherty & Troxell
Application Number: 0/112,908
Classifications
Current U.S. Class: Combined (D19/21); Perpetual (D19/25); Combined (1) (D18/2); Combined (1) (D10/2); With Calendar (D10/3)
International Classification: 1903;