Respiratory mask
Description
1. Respiratory mask
Claims
The ornamental design for a respiratory mask, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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Patent History
Patent number: D936208
Type: Grant
Filed: Apr 1, 2020
Date of Patent: Nov 16, 2021
Inventor: Markus Bindhammer (Friedberg)
Primary Examiner: L. A. Grabenstetter
Application Number: 35/509,370
Type: Grant
Filed: Apr 1, 2020
Date of Patent: Nov 16, 2021
Inventor: Markus Bindhammer (Friedberg)
Primary Examiner: L. A. Grabenstetter
Application Number: 35/509,370
Classifications
