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:
Mar. 07, 2000
Filed:
Jul. 31, 1998
Applicant:
Inventors:
Arkady S Dyckman, St Petersburg, RU;
Vladimir I Sarge, St Petersburg, RU;
Yelena N Sarge, St Petersburg, RU;
Boris I Gorovits, St Petersburg, RU;
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568754 ;
Abstract
A method for reduction of salt content in phenol tars with no additional solvent which washes the tars with water alone in a countercurrent flow extractor and substantially reduces the level of salt in the tar.