Granted Patent
Utility
US 5,047,339 · App. 06/854,106
Recovery of polyether antibiotic material
Inventor:
Vikram P. Mehrotra
Patented Case
View Patent ↗
Granted: Sep 10, 1991
Filed: Apr 21, 1986
Inventor
Vikram P. Mehrotra
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.