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. 15, 1986
Filed:
Apr. 16, 1984
Applicant:
Inventors:
Walter D Celmer, New London, CT (US);
Walter P Cullen, East Lyme, CT (US);
Paul C Watts, Mystic, CT (US);
Riichiro Shibakawa, Handa, JP;
Junsuke Tone, Chita, JP;
Assignee:
Pfizer, Inc., New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12R / ;
U.S. Cl.
CPC ...
435 76 ; 435253 ; 435872 ;
Abstract
Fermentation of a culture of Nocardia sp. ATCC 39043 produces an antibiotic complex comprising erythromycin D, 3',4'-di-O-acetylerythromycin D, 3'-O-acetyl-4'-O-propionylerythromycin D and 4'-O-acetylerythromycin D. The components are separated and are each useful in vitro and in vivo as antibacterial agents. If erythromycin D is the desired product, the esters can be hydrolyzed prior to the separation of the erythromycin D.