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:
Dec. 05, 1995
Filed:
Oct. 12, 1994
Applicant:
Inventors:
William C Steere, Grass Lake, MI (US);
Eric Sklar, Northville, MI (US);
Assignee:
Gelman Sciences Inc., Ann Arbor, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210489 ; 2104932 ; 2104934 ; 21050027 ; 21050036 ; 21050041 ; 156218 ; 156222 ; 156221 ; 156474 ; 55DI / ; 264D / ; 493941 ;
Abstract
A coreless filter comprises a pleated, spirally wound loop of material disposed in a housing. The loop includes a layer of filter material, such as a membrane filter, interposed between two support layers.