Granted Patent
Utility
US 5,770,599 · App. 08/638,331
Quinazoline derivatives
Inventor:
Kieth Hopkinson Gibson
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Apr 26, 1996
Inventor
Kieth Hopkinson Gibson
Assignee (at issue)
Zeneca Limited
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.