Granted Patent
Utility
US 5,990,359 · App. 09/101,125
Process for the production of fluoromethylhexafluoroisopropylether
Inventors:
Thomas Anthony Ryan, Leslie Burgess
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jun 30, 1998
Inventors
Thomas Anthony Ryan
Leslie Burgess
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.