Patent
   D631562
Priority
Jun 22 2010
Filed
Jun 22 2010
Issued
Jan 25 2011
Expiry
Jan 25 2025
Assg.orig
Entity
unknown
5
3
n/a
The ornamental design for a ladder hinge, as shown and described.

FIG. 1 is top, front, right side perspective view of the ladder hinge in an embodiment of the present invention;

FIG. 2 is a front elevation of the ladder hinge of the present invention;

FIG. 3 is a left side elevation of the ladder hinge of the present invention;

FIG. 4 is a rear view of the ladder hinge of the present invention;

FIG. 5 is a right side elevation view of the ladder hinge of the present invention;

FIG. 6 is a top plane view of the ladder hinge of the present invention;

FIG. 7 is a bottom plane view of the ladder hinge of the present invention;

FIG. 8 is a top, front, right side perspective view of an alternate position of the ladder hinge of the present invention; and,

FIG. 9 is a perspective view of a ladder hinge. The broken lines are for illustrative purposes only and form no part of the claimed design.

Han, Chunwen

Patent Priority Assignee Title
D915623, Sep 12 2019 TRICAM INDUSTRIES, INC Twist lock for a multi-position ladder
D935055, Aug 07 2019 TRICAM INDUSTRIES, INC Hinge for a multi-position ladder
D937443, Oct 16 2019 Ladder hinge
D966558, May 14 2019 WERNER CO Hinge lock
ER9871,
Patent Priority Assignee Title
5026198, Jul 23 1990 Lockable folding joint for foldaway ladder
7093321, Jun 07 2004 DOREL HOME FURNISHINGS, INC Lockable hinge
D553757, Feb 11 2006 LITTLE GIANT LADDER SYSTEMS, LLC Ladder hinge pair
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 22 2010Guangzhou Hansheng Trade Development Co., Ltd(assignment on the face of the patent)
Jun 28 2010HAN, CHUNWENGUANGZHOU HANSHENG TRADE DEVELOPMENT CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0248860395 pdf
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