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:
Mar. 02, 1982
Filed:
Feb. 02, 1978
Applicant:
Inventors:
Isamu Saikawa, Toyama, JP;
Shuntaro Takano, Toyama, JP;
Kaishu Momonoi, Shinminato, JP;
Isamu Takakura, Toyama, JP;
Seietsu Kuroda, Toyama, JP;
Kiyoshi Tanaka, Toyama, JP;
Kenshin Hayashi, Tonami, JP;
Bunei Nagahashi, Toyama, JP;
Chiaki Kutani, Funabashi, JP;
Assignee:
Toyama Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544 21 ; 542420 ; 544 26 ; 544 27 ;
Abstract
This disclosure relates to a novel process for producing 7-(substituted)amino-3-substituted thiomethyl cephem carboxylic acids which are intermediate products of cephalosporins being valuable antibacterial compounds for use in mammals including man.