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:
Jan. 17, 1995
Filed:
Mar. 17, 1993
Applicant:
Inventors:
John Bowser, Newark, DE (US);
John Dennison, Elkton, MD (US);
Assignee:
W. L. Gore & Associates, Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210640 ; 21050036 ;
Abstract
This invention utilizes the partial pressure difference of alcohol in two areas separated by a microporous membrane wherein one area contains a solution of alcohol and at least one other liquid and the other area contains predominately only the other liquid to cause the alcohol to migrate through the membrane.