Granted Patent
Utility
US 6,770,288 · App. 09/622,094
Drug delivery system
Inventor:
Graham Francois Duirs
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Oct 17, 2000
Inventor
Graham Francois Duirs
Assignee (at issue)
Pfizer Products 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.