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.

Date of Patent:
Nov. 30, 1993

Filed:

Oct. 26, 1992
Applicant:
Inventors:

Rudolf Naef, Lupsingen, CH;

Beat Schmidhalter, Oberkirch, CH;

Hanspeter Preiswerk, Birsfelden, CH;

Assignee:

Ciba-Geigy Corporation, Ardsley, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
546 61 ; 546 84 ; 546273 ; 548455 ;
Abstract

The compounds of the formula I ##STR1## in which Y and Y.sub.1 are each, independently of one another, O, S, NH or N-alkyl, N-cycloalkyl,


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