Granted Patent
Utility
US 5,221,740 · App. 07/822,171
Oxepane isomers of rapamycin useful as immunosuppressive agents
Inventor:
Philip F. Hughes
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Jan 16, 1992
Inventor
Philip F. Hughes
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.