Granted Patent
Utility
US 5,641,745 · App. 08/479,509
Controlled release biodegradable micro- and nanospheres containing cyclosporin
Inventor:
Zeibun Ramtoola
Patented Case
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Granted: Jun 24, 1997
Filed: Jun 7, 1995
Inventor
Zeibun Ramtoola
Assignee (at issue)
ELAN CORPORATION PLC
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.