Lock for an extension pole

- The Wooster Brush Company
Description

FIG. 1 is a side elevational view of a lock for an extension pole showing my new design, the opposite side being a mirror image of that shown;

FIG. 2 is an end elevational view thereof;

FIG. 3 is an opposite end elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a top perspective view thereof.

The broken-line showing of portions of an extension pole in the views is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
933248 September 1909 Grant
1278100 October 1918 Bruning
1365703 January 1921 Kolb
2545813 August 1946 Jackson
2682414 June 1954 Richardson
2875007 February 1959 Fox
3026592 March 1962 Dudley
3704850 December 1972 Hendrickson et al.
4586399 May 6, 1986 Kassai
Patent History
Patent number: D315286
Type: Grant
Filed: Jan 29, 1988
Date of Patent: Mar 12, 1991
Assignee: The Wooster Brush Company (Wooster, OH)
Inventor: Howard Graves (Berlin, OH)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Renner, Otto, Boisselle & Sklar
Application Number: 7/150,328
Classifications
Current U.S. Class: D/8331