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. 25, 1978
Filed:
Jun. 12, 1974
Applicant:
Inventors:
Hiroyuki Tawada, Kyoto, JP;
Hideaki Natsugari, Osaka, JP;
Kanji Meguro, Hyogo, JP;
Yutaka Kuwada, Hyogo, JP;
Assignee:
Takeda Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2684 / ;
Abstract
Compounds of the formula ##STR1## wherein R.sub.2 is lower alkyl and each of rings A and B is unsubstituted or substituted by a member selected from the group consisting of nitro, trifluoromethyl, halogen, alkyl and alkoxy, and processes for their preparation.