Granted Patent
Utility
US 5,898,088 · App. 08/663,068
Production of pentafluoroethane
Inventors:
John David Scott, Charles John Shields, Paul Nicholas Ewing
Patented Case
View Patent ↗
Granted: Apr 27, 1999
Filed: Jun 14, 1996
Inventors
John David Scott
Charles John Shields
Paul Nicholas Ewing
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.