Patent
   D915623
Priority
Sep 12 2019
Filed
Sep 12 2019
Issued
Apr 06 2021
Expiry
Apr 06 2036
Assg.orig
Entity
unknown
1
8
n/a
The ornamental design for twist lock for a multi-position ladder, as shown and described.

FIG. 1 is a perspective view of a twist lock for a multi-position ladder showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the twist lock for a multi-position ladder and form no part of the claimed design. The broken lines showing a portion of a ladder in FIG. 7 are for the purpose illustrating environment and form no part of the claimed design.

Foley, Joseph P., Williams, Benjamin P.

Patent Priority Assignee Title
ER7889,
Patent Priority Assignee Title
10487576, Mar 04 2016 WING ENTERPRISES, INCORPORATED Adjustment mechanisms, ladders incorporating same and related methods
4566150, Dec 21 1981 U S BANK NATIONAL ASSOICATION Ladder hinge and multi-position locking mechanism therefor
4697305, Feb 14 1985 U S BANK NATIONAL ASSOICATION Release mechanism for locking hinge for multi-positioned ladder
7140072, Nov 10 2004 DOREL HOME FURNISHINGS, INC Lockable ladder hinge
20040216954,
20050274571,
D553757, Feb 11 2006 LITTLE GIANT LADDER SYSTEMS, LLC Ladder hinge pair
D631562, Jun 22 2010 GUANGZHOU HANSHENG TRADE DEVELOPMENT CO , LTD Ladder hinge
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 12 2019Tricam Industries, Inc.(assignment on the face of the patent)
Sep 27 2019FOLEY, JOSEPH P TRICAM INDUSTRIES, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0506870343 pdf
Sep 27 2019WILLIAMS, BENJAMIN P TRICAM INDUSTRIES, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0506870343 pdf
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