Granted Patent
Utility
US 5,393,750 · App. 07/846,298
Composition, process and use
Inventors:
Mark Robert James, Gordon Thomson
Patented Case
View Patent ↗
Granted: Feb 28, 1995
Filed: Feb 24, 1992
Inventors
Mark Robert James
Gordon Thomson
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.