Patent
   D309502
Priority
Sep 23 1988
Filed
Sep 23 1988
Issued
Jul 24 1990
Expiry
Jul 24 2004
Assg.orig
Entity
unknown
17
3
n/a
The ornamental design for hinge for ladders and the like, as shown and described.

FIG. 1 is a perspective view of a hinge for ladders and the like showing our new design, the showing of a ladder or portion thereof is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is an elevational view of one side thereof;

FIG. 3 is an elevational view of the other side thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view, with the rear elevational view being a mirror image thereof; and

FIG. 6 is a bottom plan view thereof.

The showing of a ladder or portion thereof in broken lines in FIGS. 1 through 6 is for illustrative purposes only.

Wing, Harold R., Cluff, Kenneth C.

Patent Priority Assignee Title
6711780, Aug 22 2001 Sinclair Worldwide, Inc. Hinge for collapsible ladders
6857503, Feb 07 2002 TRICAM INDUSTRIES, INC Convertible ladder
6866117, Apr 05 2002 WING ENTERPRISES, INC Light weight ladder systems and methods
6886659, Feb 07 2002 TRICAM INDUSTRIES, INC Convertible ladder
7086499, Apr 05 2002 Wing Enterprises, Inc. Light weight ladder systems and methods
7264082, Feb 07 2002 Tricam Industries, Inc. Convertible ladder
7364017, Nov 11 2002 WING ENTERPRISES, INC Combination ladder, ladder components and methods of manufacturing same
7424933, May 28 2002 MILLER, NORMAN Ladder assemblies
8069948, Nov 11 2002 Wing Enterprises, Inc. Combination ladder, ladder components and methods of manufacturing same
8376087, Nov 11 2002 Wing Enterprises, Inc. Combination ladder, ladder components and methods of manufacturing same
D553757, Feb 11 2006 LITTLE GIANT LADDER SYSTEMS, LLC Ladder hinge pair
D710031, Nov 15 2012 TRICAM INDUSTRIES, INC Step stool
D767784, Dec 02 2014 CORE DISTRIBUTION, INC Hinge for a telescoping stepladder
D833643, Jul 07 2017 TRICAM INDUSTRIES, INC Integrated ladder tray hook
D855833, Jan 04 2017 TRICAM INDUSTRIES, INC Ladder rail
D860476, Jan 04 2017 TRICAM INDUSTRIES, INC Hinge for a multi-position ladder
D935055, Aug 07 2019 TRICAM INDUSTRIES, INC Hinge for a multi-position ladder
Patent Priority Assignee Title
4602889, Aug 31 1984 Adjustable knuckle joint device for folding ladders
4666327, Sep 22 1986 Joint for foldable aluminum ladders
4824278, Feb 21 1987 WOO KYONG INDUSTRIAL CO , LTD , A CORP OF KOREA Positioning joint for folding ladders
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 02 1988WING, HAROLD R WING ENTERPRISES, INC , A UTAH CORP ASSIGNMENT OF ASSIGNORS INTEREST 0049470956 pdf
Sep 02 1988CLUFF, KENNETH C WING ENTERPRISES, INC , A UTAH CORP ASSIGNMENT OF ASSIGNORS INTEREST 0049470956 pdf
Sep 23 1988Wing Enterprises, Inc.(assignment on the face of the patent)
Aug 27 1992WING, HAROLD R WEST ONE BANK, UTAHPATENT COLLATERAL ASSIGNMENT AND SECURITY AGREEMENT0063080921 pdf
Aug 27 1992WING ENTERPRISES, INCORPORATEDWEST ONE BANK, UTAHPATENT COLLATERAL ASSIGNMENT AND SECURITY AGREEMENT0063080921 pdf
Aug 27 1992WING, BRIGITTEWEST ONE BANK, UTAHPATENT COLLATERAL ASSIGNMENT AND SECURITY AGREEMENT0063080921 pdf
Sep 29 1993WING, HAROLD R WEST ONE BANK, UTAHAMENDMENT TO PRIOR ASSIGNMENT AND SECURTIY AGREEMENT0067720839 pdf
Sep 29 1993WING ENTERPRISES, INCORPORATEDWEST ONE BANK, UTAHAMENDMENT TO PRIOR ASSIGNMENT AND SECURTIY AGREEMENT0067720839 pdf
Sep 29 1993WING, BRIGITTEWEST ONE BANK, UTAHAMENDMENT TO PRIOR ASSIGNMENT AND SECURTIY AGREEMENT0067720839 pdf
Jul 08 2002WING ENTERPRISES, INC U S BANK NATIONAL ASSOICATIONCOLLATERAL ASSIGNMENT0131840959 pdf
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