Granted Patent
Utility
US 5,532,287 · App. 08/238,115
Radiation cured drug release controlling membrane
Inventors:
Gary Savage, James M. Clevenger
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: May 4, 1994
Inventors
Gary Savage
James M. Clevenger
Assignee (at issue)
Ciba-Geigy
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.