Granted Patent
Utility
US 4,816,042 · App. 07/101,073
Scrubber-exhaust gas conditioner
Inventor:
Lars G. Olavson
Patented Case
View Patent ↗
Granted: Mar 28, 1989
Filed: Sep 25, 1987
Inventor
Lars G. Olavson
Assignee (at issue)
Baker International Inc.
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.