Granted Patent
Utility
US 5,023,263 · App. 07/564,910
42-oxorapamycin
Inventor:
Gregory F. Von Burg
Patented Case
View Patent ↗
Granted: Jun 11, 1991
Filed: Aug 9, 1990
Inventor
Gregory F. Von Burg
Assignee (at issue)
Amerimas Home Products, Inc.
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.