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:
Nov. 29, 2011
Filed:
Mar. 13, 2008
Applicants:
Howard D. Hutchinson, Waterbury, CT (US);
Mahesh Z. Patel, Plantsville, CT (US);
Inventors:
Howard D. Hutchinson, Waterbury, CT (US);
Mahesh Z. Patel, Plantsville, CT (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/02 (2006.01); B01D 46/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter housing and filter cartridge engagement structure comprising a housing having at least one ramp adapted to engage lugs of the at least one filter cartridge.