Ladder hinge
Description
The broken lines of
Claims
The ornamental design for a ladder hinge, as shown and described.
Referenced Cited
U.S. Patent Documents
D631562 | January 25, 2011 | Han |
D908924 | January 26, 2021 | Melton |
D914912 | March 30, 2021 | Barker |
10975622 | April 13, 2021 | Yoo |
20040129497 | July 8, 2004 | Weiss |
Patent History
Patent number: D937443
Type: Grant
Filed: Oct 16, 2019
Date of Patent: Nov 30, 2021
Inventor: Thomas Yoo (Garden Grove, CA)
Primary Examiner: Gino Colan
Application Number: 29/709,705
Type: Grant
Filed: Oct 16, 2019
Date of Patent: Nov 30, 2021
Inventor: Thomas Yoo (Garden Grove, CA)
Primary Examiner: Gino Colan
Application Number: 29/709,705
Classifications
Current U.S. Class:
Element Of Attachment (13) (D25/68)