Buffering mechanism for an extension ladder
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Description
The broken lines shown in the figures are for the purpose of illustrating portions of the buffering mechanism for an extension ladder and form no part of the claimed design.
Claims
The ornamental design for a buffering mechanism for an extension ladder, as shown and described.
Referenced Cited
U.S. Patent Documents
3369411 | February 1968 | Hines |
4058018 | November 15, 1977 | Lauper |
D315177 | March 5, 1991 | Takahashi |
D332667 | January 19, 1993 | Brooks |
8291810 | October 23, 2012 | Hey |
20140284140 | September 25, 2014 | Omri |
Patent History
Patent number: D829347
Type: Grant
Filed: May 20, 2016
Date of Patent: Sep 25, 2018
Assignee: EASYTEC CORPORATION (Dongguan)
Inventor: Yelin Yin (Dongguan)
Primary Examiner: Cynthia Ramirez
Assistant Examiner: Gino Colan
Application Number: 29/565,466
Type: Grant
Filed: May 20, 2016
Date of Patent: Sep 25, 2018
Assignee: EASYTEC CORPORATION (Dongguan)
Inventor: Yelin Yin (Dongguan)
Primary Examiner: Cynthia Ramirez
Assistant Examiner: Gino Colan
Application Number: 29/565,466
Classifications
Current U.S. Class:
Element Of Attachment (13) (D25/68)