The broken lines in the drawings illustrate the portions of the ladder which form no part of the claimed design.
The broken lines in the drawings illustrate the portions of the ladder which form no part of the claimed design.
Number | Name | Date | Kind |
---|---|---|---|
4182431 | Wing | Jan 1980 | A |
4376470 | Ashton | Mar 1983 | A |
6220389 | Krause | Apr 2001 | B1 |
7364017 | Moss | Apr 2008 | B2 |
10801261 | Peterson | Oct 2020 | B2 |
D908924 | Melton | Jan 2021 | S |
D914912 | Barker | Mar 2021 | S |
20170356244 | Peterson | Dec 2017 | A1 |