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:
May. 02, 1989
Filed:
Sep. 02, 1986
Applicant:
Inventors:
Kuniyoshi Masuzawa, Koga, JP;
Seigo Suzue, Kuki, JP;
Keiji Hirai, Kuki, JP;
Takayoshi Ishizaki, Saitama, JP;
Assignee:
Kyorin Pharmaceutical Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544363 ; 546156 ; 558425 ; 560 38 ; 560 42 ; 560 51 ; 560 53 ; 560 54 ; 562493 ; 2605 / ; 564183 ; 564218 ; 564441 ; 564442 ; 568938 ;
Abstract
Quinolonecarboxylic acid derivatives of the following formula, ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently hydrogen atom or lower alkyl group; the hydrates or the pharmaceutically acceptable acid addition or alkali salts thereof are useful as an antibacterial agent.