Calculator flap book cover

Description

FIG. 1 is a top plan view of the inside of a calculator flap book cover showing my new design;

FIG. 2 is a bottom plan view thereof; and,

FIG. 3 is a top plan view thereof, with the flap in a closed position.

The broken lines in FIG. 3 are for illustrative purposes only and form no part of the claimed design. The claim as disclosed is understood to be of conventional thickness.

Referenced Cited
U.S. Patent Documents
D246205 October 25, 1977 Lewis
D250592 December 19, 1978 Testro et al.
D300227 March 14, 1989 Noguchi
D303809 October 3, 1989 Klein
591746 October 1897 Dusart, Jr.
Patent History
Patent number: D326681
Type: Grant
Filed: May 31, 1988
Date of Patent: Jun 2, 1992
Inventor: Lorenz Eber (Evanston, IL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Pamela Schmidt
Application Number: 7/200,773
Classifications
Current U.S. Class: Book, Album Or Cover (D19/26)