Granted Patent
Utility
US 6,007,706 · App. 09/145,165
Removal of sulphur together with other contaminants from fluids
Inventors:
Peter John Herbert Carnell, Edwin Willis
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Sep 2, 1998
Inventors
Peter John Herbert Carnell
Edwin Willis
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.