The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2024
Filed:
Apr. 22, 2022
Applicant:
Keith Allan Langenwalter, Portland, OR (US);
Inventor:
Keith Allan Langenwalter, Portland, OR (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A62B 23/00 (2006.01); A41D 13/11 (2006.01); A62B 23/02 (2006.01); B01D 46/00 (2022.01);
U.S. Cl.
CPC ...
A62B 23/025 (2013.01); A41D 13/1161 (2013.01); B01D 46/0002 (2013.01);
Abstract
A reusable face mask with a foam face seal to protect against transmission of airborne pathogens. The face mask uses an easily interchangeable, readily available, non-proprietary, standard filter. It has a section specifically designed to mitigate the fogging of glasses, and has a user-interchangeable strap/harness system.