Granted Patent
Utility
US 4,378,433 · App. 06/139,565
Method for producing zinc etheromycin from fermentation broths
Inventor:
Jerome L. Martin
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Apr 11, 1980
Inventor
Jerome L. Martin
Assignee (at issue)
International Minerals & Chemical Corp.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.