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:
Oct. 12, 1976
Filed:
Dec. 13, 1974
Applicant:
Inventors:
Elvin L Boyce, Salt Lake City, UT (US);
William Keith Robinson, Salt Lake City, UT (US);
Assignee:
Tape-Licator, Inc., Riverton, UT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A62B / ;
U.S. Cl.
CPC ...
1281462 ;
Abstract
An improved filter mask having a laterally pleated filter medium and a stiffening member parallel to and in the vicinity of the pleats. Lateral opening of the pleats causes the stiffening members to bow outwardly and support the filter medium away from the nose and mouth of the wearer thereby providing greater filtering efficiency and wearer comfort.