Granted Patent
Utility
US 6,352,721 · App. 09/483,282
Combined diffusion/osmotic pumping drug delivery system
Inventor:
Joaquina Faour
Patented Case
View Patent ↗
Granted: Mar 5, 2002
Filed: Jan 14, 2000
Inventor
Joaquina Faour
Assignee (at issue)
Osmotica Corp.
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.