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:
Apr. 07, 1981
Filed:
Nov. 26, 1979
Applicant:
Inventors:
Peter Jacobs, Frankenthal, DE;
Dietrich Mangold, Neckargemuend, DE;
Gerhard Hamprecht, Weinheim, DE;
Assignee:
BASF Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605136 ;
Abstract
Amidosulfonic acids are prepared by reacting ureas with oleum of a particular composition, first at a low temperature and then at a higher temperature, in the presence of an organic solvent. The products are starting materials for the preparation of dyes and pesticides.