Granted Patent
Utility
US 5,770,603 · App. 08/871,989
Quinazoline derivatives
Inventor:
Keith Gibson
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Apr 10, 1997
Inventor
Keith 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.