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. 21, 1981
Filed:
Nov. 20, 1979
Applicant:
Inventors:
Akira Matsubara, Yokohama, JP;
Hideaki Sakai, Fujisawa, JP;
Takuo Nakano, Yokohama, JP;
Toshio Suganuma, Mobara, JP;
Assignee:
Mitsui Toatsu Chemicals, Incorporated, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
424258 ; 2602391 ; 546156 ;
Abstract
A penicillanic acid of the general formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each represent a hydrogen atom or a lower alkyl group, provided that R.sup.1, R.sup.2 and R.sup.3 do not simultaneously represent a hydrogen atom, or a biologically acceptable salt thereof.