Granted Patent
Utility
US 5,972,027 · App. 08/940,696
Porous stent drug delivery system
Inventor:
Michael W. Johnson
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Sep 30, 1997
Inventor
Michael W. Johnson
Assignee (at issue)
Scimed Life Systems, 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.