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:
Aug. 09, 1994
Filed:
Jan. 04, 1993
Applicant:
Inventors:
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ; C07C / ; C07C / ; C07D / ;
U.S. Cl.
CPC ...
558 30 ; 558 29 ; 558 47 ; 558171 ; 546-1 ; 546323 ; 546326 ; 544386 ; 544387 ; 544388 ; 544390 ; 544391 ; 544400 ; 562 52 ; 562106 ; 562430 ; 562432 ; 564153 ; 564154 ; 564159 ; 560 12 ; 560 13 ; 560 39 ; 560 40 ; 560 41 ; 560 42 ; 560 43 ; 560 22 ; 560129 ; 560150 ; 560174 ; 560169 ; 560231 ;
Abstract
Oxamides useful as dye intermediates have the formula ##STR1## where R.sup.1 and R.sup.2 are independently of each other hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,