Engine maintenance ladder
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Description
Claims
The ornamental design for the engine maintenance ladder, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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- Non-Final Rejection dated Jun. 15, 2020, from U.S. Appl. No. 16/111,501, 44 sheets.
- Notice of Allowance dated Jul. 1, 2020, from U.S. Appl. No. 16/111,501, 22 sheets.
Patent History
Patent number: D898944
Type: Grant
Filed: Aug 24, 2018
Date of Patent: Oct 13, 2020
Assignee: LOCK N CLIMB, LLC (Independence, KS)
Inventor: Jeffrey Alan Green (Independence, KS)
Primary Examiner: Gino Colan
Application Number: 29/661,095
Type: Grant
Filed: Aug 24, 2018
Date of Patent: Oct 13, 2020
Assignee: LOCK N CLIMB, LLC (Independence, KS)
Inventor: Jeffrey Alan Green (Independence, KS)
Primary Examiner: Gino Colan
Application Number: 29/661,095
Classifications
Current U.S. Class:
Ladder (D25/64)