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:
Apr. 14, 1998
Filed:
Apr. 07, 1995
Applicant:
Inventors:
Hisayu Ohsawa, Tokyo, JP;
Tomoyuki Kurumada, Tokyo, JP;
Takaaki Yamazaki, Tokyo, JP;
Satoru Naito, Tokyo, JP;
Kohtaro Kanetaki, Kawasaki, JP;
Assignee:
Sankyo Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 75 ;
Abstract
Compounds of formula (I): ##STR1## wherein: R.sup.1 represents an alkyl group having from 1 to 6 carbon atoms;