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:
Nov. 01, 1994
Filed:
May. 25, 1993
Applicant:
Inventors:
Norbert Grief, Bobenheim, DE;
Knut Oppenlaender, Ludwigshafen, DE;
Hermann Birkhofer, Ludwigshafen, DE;
Brigitte Wegner, Roemerberg, DE;
Johannes P Dix, Weisenheim, DE;
Assignee:
Basf Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C14C / ; C07D / ;
U.S. Cl.
CPC ...
8 9433 ; 8 9421 ; 252-857 ; 549415 ;
Abstract
Abstract of the Disclosure: A process for tanning leather comprises using for this purpose compounds of the general formula I ##STR1## where m is 0 or 1, and the radicals