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. 17, 2013
Filed:
Dec. 03, 2009
Applicants:
Britton G. Billingsley, St. Paul, MN (US);
Marvin E. Jones, Grant, MN (US);
Inventors:
Britton G. Billingsley, St. Paul, MN (US);
Marvin E. Jones, Grant, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A62B 23/02 (2006.01); B01D 53/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter element utilizes a porous shape-retaining self-supporting non-woven web. The web includes thermoplastic elastomeric polymer fibers and active particles disposed in the fibers. The web also possesses a three-dimensional deformation.