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:
Sep. 14, 2021
Filed:
Dec. 27, 2012
3m Innovative Properties Company, St. Paul, MN (US);
Dean R. Duffy, Woodbury, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A filtering facepiece respiratorthat includes a harnessand a mask bodythat has a filtering structurethat contains one or more layers of filter mediaand that has a perimeter. The mask body also has first and second flangeslocated on opposing sides of the filtering structure. The first and second flangeseach have a leading edgeand are each folded inwardly in contact with the filtering structure. The in-contact configuration exists when the mask bodyis open in an in-use configuration. The leading edgeof each flangeis configured to match the mask body perimeterwhen the flangesare folded inwardly in contact with the filtering structure