Ladder hinge pair

- Wing Enterprises, Inc.
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Description

FIG. 1 is a perspective view of a ladder hinge pair as coupled to a portion of a ladder showing our new design;

FIG. 2 is a reversed perspective view of the ladder hinge pair shown in FIG. 1; and,

FIG. 3 is a reversed perspective view of the ladder hinge pair shown in FIG. 1 with the hinges in an extended position.

The broken lines showing a ladder is for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for a ladder hinge pair, as shown and described.

Referenced Cited
U.S. Patent Documents
453193 June 1891 Kinser
1973774 September 1934 Pflugradt
2144440 January 1939 Gaffers
2186119 January 1940 Moen
3002582 October 1961 Marcelis
3318413 May 1967 Werner et al.
3327385 June 1967 Shaver
3692143 September 1972 Kümmerlin et al.
3811151 May 1974 Kuemmerlin
3849834 November 1974 Mayer
D248777 August 1, 1978 Spencer et al.
RE30020 June 5, 1979 Spencer et al.
4182431 January 8, 1980 Wing
4210224 July 1, 1980 Kummerlin et al.
4371055 February 1, 1983 Ashton et al.
4376470 March 15, 1983 Ashton
4407045 October 4, 1983 Boothe
4474264 October 2, 1984 Krause
4540306 September 10, 1985 Wang
4566150 January 28, 1986 Boothe
4597687 July 1, 1986 Colas
4656721 April 14, 1987 Werner
4697305 October 6, 1987 Boothe
4698896 October 13, 1987 Osterwald et al.
4773503 September 27, 1988 Purkapile
4890950 January 2, 1990 Yoo
D309502 July 24, 1990 Wing et al.
4947959 August 14, 1990 Yuen
4967879 November 6, 1990 Klafs et al.
4974701 December 4, 1990 Parise
5002153 March 26, 1991 Yuen
5279387 January 18, 1994 Swiderski et al.
5353892 October 11, 1994 Lu
5359812 November 1, 1994 Mayfield
5366051 November 22, 1994 Bartnicki et al.
5419084 May 30, 1995 Sankey et al.
D359366 June 13, 1995 Spevak
5515942 May 14, 1996 Woodfield
5954157 September 21, 1999 Grimes et al.
5966777 October 19, 1999 Jantschek
6032759 March 7, 2000 Yeh
6141909 November 7, 2000 Hanson
6220389 April 24, 2001 Krause
6269909 August 7, 2001 Grimes et al.
6298605 October 9, 2001 Delefosse et al.
6343406 February 5, 2002 Yeh
D459483 June 25, 2002 Roy
6533882 March 18, 2003 Woodside
6866117 March 15, 2005 Moss
7047597 May 23, 2006 Lee
20040140156 July 22, 2004 Moss et al.
Foreign Patent Documents
195 39 157 April 1997 DE
0 324 885 July 1989 EP
1002235 August 1997 NL
Other references
  • PCT International Search Report dated Jul. 19, 2004 for International Application No. PCT/US 03/36043 (6 pages).
Patent History
Patent number: D553757
Type: Grant
Filed: Feb 11, 2006
Date of Patent: Oct 23, 2007
Assignee: Wing Enterprises, Inc. (Springville, UT)
Inventors: N. Ryan Moss (Mapleton, UT), Jack W. Bowers (Springville, UT)
Primary Examiner: Doris Clark
Attorney: TraskBritt
Application Number: 29/253,759
Classifications