Corner insert for mitred extruded window frames

- CertainTeed Corporation
Description

FIG. 1 is a top, front, and right side perspective view of a corner insert for mitred extruded window frames showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear elevational view thereof; and

FIG. 8 is a top, front and left side perspective view of an alternate embodiment thereof, the only difference being that the article is a mirror image of the first embodiment.

Referenced Cited
U.S. Patent Documents
3711995 January 1973 Anderson
3905154 September 1975 Anderson
4390578 June 28, 1983 Brooks
4446654 May 8, 1984 Schoolman et al.
4622778 November 18, 1986 Simpson
4739600 April 26, 1988 Lynch et al.
4813180 March 21, 1989 Scalzi
4924631 May 15, 1990 Davies et al.
Patent History
Patent number: D315795
Type: Grant
Filed: Nov 4, 1988
Date of Patent: Mar 26, 1991
Assignee: CertainTeed Corporation (Valley Forge, PA)
Inventors: Dennis Westphal (Galva, KS), Jonathan Piles (McPherson, KS)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Paul & Paul
Application Number: 7/266,989
Classifications
Current U.S. Class: D25/52