Granted Patent
Utility
US 5,449,656 · App. 08/087,379
Fluorination catalyst and process
Inventors:
John David Scott, Michael John Watson
Patented Case
View Patent ↗
Granted: Sep 12, 1995
Filed: Jul 8, 1993
Inventors
John David Scott
Michael John Watson
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES 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.