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