Hair growth device
Description
The broken lines in the figures illustrate portions of the hair growth device that form no part of the claimed design.
Claims
The ornamental design for a hair growth device, as shown and described.
Referenced Cited
U.S. Patent Documents
D777339 | January 24, 2017 | Chen |
D849959 | May 28, 2019 | Lay |
D872293 | January 7, 2020 | Chen |
D896977 | September 22, 2020 | Chen |
D897548 | September 29, 2020 | Liu |
D909595 | February 2, 2021 | Lee |
20170028216 | February 2, 2017 | Medendorp, Jr. |
20180008839 | January 11, 2018 | Hamid |
20190054311 | February 21, 2019 | Wasserbauer |
Patent History
Patent number: D920529
Type: Grant
Filed: Nov 1, 2019
Date of Patent: May 25, 2021
Inventor: Jianwen Liu (Jiangxi)
Primary Examiner: Anhdao Doan
Application Number: 29/711,609
Type: Grant
Filed: Nov 1, 2019
Date of Patent: May 25, 2021
Inventor: Jianwen Liu (Jiangxi)
Primary Examiner: Anhdao Doan
Application Number: 29/711,609
Classifications
Current U.S. Class:
Solar, Light Or Radiant Tube Therapy (D24/209)