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:
Feb. 04, 2003
Filed:
Jan. 17, 2001
Applicant:
Inventors:
Mark T Meyering, Middlefield, CT (US);
Jack H. Vining, Jr., Coventry, CT (US);
C. Thomas Badenhop, Westport, CT (US);
Assignee:
Cuno Incorporated, Meriden, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 2/905 ;
U.S. Cl.
CPC ...
B01D 2/905 ;
Abstract
A three zone, reinforced, continuous, geometrically symmetrical microporous membrane including a porous support material encapsulated within a middle zone disposed between an upper zone and a lower zone wherein at least one of the three zones has a pore size at least about twenty (20%) percent different than the pore size of the other two zones is disclosed. Apparatus and methods for fabricating three zone reinforced, continuous, geometrically symmetrical, microporous membrane are also disclosed.