Four-wheel walking aid
Description
The broken lines showing is for the purpose of illustrating portions of the four-wheel walking aid that form no part of the claimed design.
Claims
The ornamental design for a four-wheel walking aid, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
D837697 | January 8, 2019 | Luo |
D902791 | November 24, 2020 | Fellingham |
11071676 | July 27, 2021 | Fellingham |
20150173994 | June 25, 2015 | Chen |
20150351994 | December 10, 2015 | Nicholson |
20200315901 | October 8, 2020 | Fellingham |
- Winlove, Published Sep. 18, 2020 [online], [retrieved on Dec. 4, 2021]. Retrieved from the Internet: https://www.amazon.com/WINLOVE-Rollator-Steerable-Armrests-Aluminium/dp/B08SVN1R6R (Year: 2020).
Patent History
Patent number: D970397
Type: Grant
Filed: Nov 27, 2020
Date of Patent: Nov 22, 2022
Inventor: Yonghua Lu (Shangrao)
Primary Examiner: Cary M Robinson
Assistant Examiner: Adam C Mager
Application Number: 29/759,995
Type: Grant
Filed: Nov 27, 2020
Date of Patent: Nov 22, 2022
Inventor: Yonghua Lu (Shangrao)
Primary Examiner: Cary M Robinson
Assistant Examiner: Adam C Mager
Application Number: 29/759,995
Classifications
Current U.S. Class:
Walker (D12/130)