Folding ladder
Description
Claims
The ornamental design for a folding ladder, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
| D565745 | April 1, 2008 | Meyers |
| D576291 | September 2, 2008 | Latimer |
| D872876 | January 14, 2020 | Leng |
| D972169 | December 6, 2022 | Yan |
| D1009304 | December 26, 2023 | Wernberg |
| 20140224585 | August 14, 2014 | Russell |
| 20150159434 | June 11, 2015 | Leng |
| 20150308190 | October 29, 2015 | Skubic et al. |
| 20160348434 | December 1, 2016 | Williams et al. |
| 201048735 | April 2008 | CN |
| 208184638 | December 2018 | CN |
| 222045640 | November 2024 | CN |
Patent History
Patent number: D1147453
Type: Grant
Filed: Aug 23, 2024
Date of Patent: Sep 8, 2026
Inventor: Luhao Leng (Xiamen City)
Primary Examiner: Gino Colan
Application Number: 29/959,084
Type: Grant
Filed: Aug 23, 2024
Date of Patent: Sep 8, 2026
Inventor: Luhao Leng (Xiamen City)
Primary Examiner: Gino Colan
Application Number: 29/959,084
Classifications
Current U.S. Class:
Step Stool Type (D25/65)