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:
Jul. 31, 1979
Filed:
Apr. 17, 1978
Applicant:
Inventors:
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N / ; C07D / ;
U.S. Cl.
CPC ...
424279 ; 26034321 ; 2603 / ;
Abstract
Novel 3-phenyl-2-thioxo-2H,5H-pyrano[3,2-c][I]benzopyran-5-one derivatives, a process for their manufacture, compositions which contain these compounds as active substances for controlling harmful rodents, and the use of the active substances, or of compositions which contain them, as rodenticides. The novel 3-phenyl-2-thioxo-2H,5H-pyrano[3,2-c][I]benzopyran-5-one derivatives have the general formula I ##STR1## wherein each of R and R' independently represents hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, or halogen.