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:
Oct. 04, 1994
Filed:
Nov. 15, 1993
Applicant:
Inventors:
Dilip R Abayasekara, Newark, DE (US);
Robert L Henn, Wilmington, DE (US);
Assignee:
W. L. Gore & Associates, Onc., Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
4283084 ; 55522 ; 210506 ; 2105101 ; 428421 ; 428422 ;
Abstract
A fluid filtration material made of a porous substrate, e.g. a membrane or a fabric, that is coated with a fluorinated copolymer that contains recurring vinyl alcohol units that have been reacted with a monoepoxide to aid in preventing loss of hydrophilicity in the coated material.