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:
May. 26, 1992
Filed:
Dec. 03, 1990
Applicant:
Inventor:
John Bowser, Newark, DE (US);
Assignee:
W. L. Gore & Associates, Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 342 ; 55524 ; 55527 ; 55528 ; 1621681 ; 428 345 ; 428 347 ; 428 361 ; 428 365 ; 428 369 ; 428255 ; 428265 ; 428267 ; 428272 ; 428288 ; 428290 ; 4283084 ; 4283088 ; 4283157 ; 4283197 ; 428422 ;
Abstract
A gas permeable material comprising a material having continuous pores through it, in which the pore interiors are coated with an amorphous copolymer of tetrafluoroethylene and perfluoro-2,2-dimethyl-1,3-dioxole.