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. 22, 1998
Filed:
Dec. 11, 1996
Applicant:
Inventor:
Jean Lemonnier, Paris, FR;
Assignee:
Millipore S.A., Saint-Quentin-En-Yvelines, Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2103211 ; 21032175 ; 21032184 ; 210445 ;
Abstract
A filtration unit containing a filtering membrane, a cover upstream of the membrane, and a base downstream of the membrane, and joined together, characterized in that the filtering membrane has an elliptical shape. This elliptical shape facilitates the use for filtration and allows the unit to be reused without the formation of an air lock when the filtering membrane is partially hydrophobic.