Window jam friction shoe

Description

FIG. 1 is a front perspective view of a window jam friction shoe embodying my new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear elevation thereof;

FIG. 4 is a right side elevation thereof;

FIG. 5 is a top plan thereof;

FIG. 6 is a left side elevation thereof; and

FIG. 7 is a bottom plan thereof.

Referenced Cited
U.S. Patent Documents
D104743 June 1937 Hedberg
D105350 July 1937 Smult
D209812 January 1968 Biro
3466806 September 1969 Teggelaar et al.
3788006 January 1974 Teggelaar et al.
Patent History
Patent number: D317713
Type: Grant
Filed: Oct 19, 1987
Date of Patent: Jun 25, 1991
Inventor: Donald T. Kaplan (Janesville, MN)
Primary Examiner: B. J. Bullock
Law Firm: Peterson, Wicks, Nemer & Kamrath
Application Number: 7/109,854
Classifications
Current U.S. Class: D/8402