Engine maintenance ladder

- LOCK N CLIMB, LLC
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front perspective view of an engine maintenance ladder showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Claims

The ornamental design for the engine maintenance ladder, as shown and described.

Referenced Cited
U.S. Patent Documents
2381492 August 1945 Fenner
2423477 July 1947 Brimboeuf
2624590 January 1953 Tilton
2701168 February 1955 Schemers
2962112 November 1960 Ramsberger
6105719 August 22, 2000 Lensing
6926365 August 9, 2005 Bottoms
7048091 May 23, 2006 Maguire
7350621 April 1, 2008 Abraham
7828116 November 9, 2010 Vetesnik
8002084 August 23, 2011 Huang
D722182 February 3, 2015 Green
D745191 December 8, 2015 Green
D796694 September 5, 2017 Green
9834987 December 5, 2017 Lo
D836215 December 18, 2018 Green
D840055 February 5, 2019 Skubic
D884923 May 19, 2020 Green
20080093166 April 24, 2008 Frolik
20110011674 January 20, 2011 Kim
20150308190 October 29, 2015 Skubic
20150354276 December 10, 2015 Green
20170226803 August 10, 2017 Russell
Other references
  • 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
Classifications
Current U.S. Class: Ladder (D25/64)