Window sash lock

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Description

FIG. 1 is a top, front, and left side perspective view of a window sash lock showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan 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; and,

FIG. 7 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D209901 January 1968 Fredricksen
D211452 June 1968 Petrell
D295019 April 5, 1988 Bocson
D296982 August 2, 1988 White et al.
D316509 April 30, 1991 Nolte
4095829 June 20, 1978 Van Klompenburg
4621847 November 11, 1986 Paulson et al.
4991886 February 12, 1991 Nolte et al.
5087087 February 11, 1992 Vetter et al.
Other references
  • Truth brochure "16/EntryGard Sash Lock", pp. 11-11a (1988). Truth brochure "16/Non-Handed, Low Profile Sash Lock", pp. 12-12c (1988). Truth brochure "16/Sash Lock", pp. 13-13a (1988).
Patent History
Patent number: D334132
Type: Grant
Filed: Aug 16, 1991
Date of Patent: Mar 23, 1993
Assignee: Truth Div. of SPX Corp. (Owatonna, MN)
Inventors: Greg R. Wobschall (Owatonna, MN), Marvin G. Root (Owatonna, MN)
Primary Examiner: Brian N. Vinson
Law Firm: Wood, Phillips, VanSanten, Hoffman & Ertel
Application Number: 7/746,509
Classifications
Current U.S. Class: D/8337