Interlocking snap-hook unit

- Illinois Tool Works Inc.
Description

FIG. 1 is a front elevational view of an interlocking snap-hook unit showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view taken in the direction of the arrows 3--3; and

FIG. 4 is a bottom plan view taken in the direction of the arrows 4--4.

Referenced Cited
U.S. Patent Documents
137786 April 1873 Merrill
158220 December 1874 Reynolds
165122 June 1875 Reynolds
D171283 January 1954 Kramer
D209155 November 1967 Van Der Houten
881662 March 1908 Caney
1364709 January 1921 Butler
1576352 March 1926 Nordling
2657446 November 1953 Roberts
4107823 August 22, 1978 Siesto
4226105 October 7, 1980 Wehrman
Foreign Patent Documents
469053 May 1914 FRX
505991 May 1920 FRX
Patent History
Patent number: D303212
Type: Grant
Filed: May 15, 1986
Date of Patent: Sep 5, 1989
Assignee: Illinois Tool Works Inc. (Chicago, IL)
Inventor: William G. Crowle (Deerfield, IL)
Primary Examiner: Horace B. Fay, Jr.
Attorneys: John P. O'Brien, Thomas W. Buckman
Application Number: 6/863,558
Classifications
Current U.S. Class: D/8372; 24/241PS