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:
Nov. 30, 1982
Filed:
Jul. 20, 1981
Applicant:
Inventors:
Walter D Celmer, New London, CT (US);
Walter P Cullen, East Lyme, CT (US);
Riichiro Shibakawa, Handa, JP;
Junsuke Tone, Chita, JP;
Assignee:
Pfizer Inc., Groton, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12R / ;
U.S. Cl.
CPC ...
435119 ; 435253 ; 435886 ;
Abstract
A new acidic polycyclic ether antibiotic has the formula: ##STR1## and can be prepared by the submerged aerobic propagation in aqueous nutrient media of Streptomyces halstedii ATCC 31812. The antibiotic and its cationic salts are active against a variety of microorganisms and are effective in controlling coccidiosis, enteritis, swine dysentery and theileriosis as well as being effective in promotion of growth in poultry and ruminants.