Hinge for ladders and the like

- Wing Enterprises, Inc.
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Description

FIG. 1 is a perspective view of a hinge for ladders and the like showing our new design, the showing of a ladder or portion thereof is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is an elevational view of one side thereof;

FIG. 3 is an elevational view of the other side thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view, with the rear elevational view being a mirror image thereof; and

FIG. 6 is a bottom plan view thereof.

The showing of a ladder or portion thereof in broken lines in FIGS. 1 through 6 is for illustrative purposes only.

Referenced Cited
U.S. Patent Documents
4602889 July 29, 1986 Mu-Shan
4666327 May 19, 1987 Su
4824278 April 25, 1989 Chang
Patent History
Patent number: D309502
Type: Grant
Filed: Sep 23, 1988
Date of Patent: Jul 24, 1990
Assignee: Wing Enterprises, Inc. (Springville, UT)
Inventors: Harold R. Wing (Springville, UT), Kenneth C. Cluff (Orem, UT)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Law Firm: Thorpe, North & Western
Application Number: 7/248,471
Classifications
Current U.S. Class: Element Of Attachment (13) (D25/68); D/8323