Granted Patent
Utility
US 5,495,056 · App. 08/355,306
Production of hydrofluorocarbons
Inventors:
Leslie Burgess, Thomas Anthony Ryan, Richard Powell
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Dec 12, 1994
Inventors
Leslie Burgess
Thomas Anthony Ryan
Richard Powell
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.