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:
Aug. 02, 2005
Filed:
Jul. 18, 2002
Seyed Abolhassan Angadjivand, Woodbury, MN (US);
James E. Springett, Hudson, WI (US);
Thomas I. Insley, Lake Elmo, MN (US);
Seyed Abolhassan Angadjivand, Woodbury, MN (US);
James E. Springett, Hudson, WI (US);
Thomas I. Insley, Lake Elmo, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A filtering face mask that includes a mask body that is adapted to fit over the nose and mouth of a person and a harness that is attached to the mask body. The mask body comprises i) a first shaping layer that has been molded; ii) a second shaping layer that has been molded; iii) a filtration layer that is disposed between the first and second shaping layers; iv) a first adhesive layer that adheres the first shaping layer to the filtration layer; and v) a second adhesive layer that adheres the second shaping layer to the filtration layer.