Granted Patent
Utility
US 6,709,676 · App. 10/175,480
Extended release oral dosage composition
Inventor:
Wing-Kee Philip Cho
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Jun 19, 2002
Inventor
Wing-Kee Philip Cho
Assignee (at issue)
SCHERING CORPORATION
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.