Granted Patent
Utility
US 5,658,369 · App. 08/491,428
Recovery of substances from exhaust streams
Inventor:
Roland Gregor Paul Kusay
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Jun 16, 1995
Inventor
Roland Gregor Paul Kusay
Assignee (at issue)
The BOC Group plc
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.