Patent · US Expired

Polycyclic ether antibiotic

US4533553A · kind A · utility

4Cited by

13References

3Claims

0Family size

Assignee

PFIZER INC. · US

Inventors

Walter D. Celmer · New London, US
Walter P. Cullen · East Lyme, US
Riichiro Shibakawa · Handa, JP
Junsuke Tone · Chita, JP

Key dates

Filing date	Nov 9, 1983
Grant date	Aug 6, 1985
Priority date	—
Expiry date	Nov 9, 2003

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12R2001/465
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

Growth of cattle and swine is promoted and feed utilization efficiency increased by an improved nutrient feed containing the antibiotic of the formula ##STR1##

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.