Granted Patent
Utility
US 4,654,334 · App. 06/581,202
Manganese-containing antibiotic agents
Inventors:
Robert D. Williams, David R. Bright, Vernon V. Young, Jerome L. Martin
Patented Case
View Patent ↗
Granted: Mar 31, 1987
Filed: Feb 21, 1984
Inventors
Robert D. Williams
David R. Bright
Vernon V. Young
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.