Protective mask
Latest ANHUI HENGYU OPTICAL ELECTRONICS CO., LTD Patents:
Description
The broken lines in the Figures show portions of the protective mask which form no part of the claimed design.
Claims
I claim the ornamental design for the protective mask, as shown and described.
Referenced Cited
U.S. Patent Documents
D393933 | April 28, 1998 | Huh |
D398421 | September 15, 1998 | Crafoord |
D489492 | May 4, 2004 | Wu |
D793626 | August 1, 2017 | Yang |
20170042738 | February 16, 2017 | Yang |
Patent History
Patent number: D919188
Type: Grant
Filed: May 10, 2019
Date of Patent: May 11, 2021
Assignee: ANHUI HENGYU OPTICAL ELECTRONICS CO., LTD (Hefei)
Inventor: Haijian Sun (Hefei)
Primary Examiner: Robert A Delehanty
Application Number: 29/690,718
Type: Grant
Filed: May 10, 2019
Date of Patent: May 11, 2021
Assignee: ANHUI HENGYU OPTICAL ELECTRONICS CO., LTD (Hefei)
Inventor: Haijian Sun (Hefei)
Primary Examiner: Robert A Delehanty
Application Number: 29/690,718
Classifications
Current U.S. Class:
Including Transparent Eye Shield (e.g., Welder's Mask, Glare Shield) (D29/110)