Granted Patent
Utility
US 6,406,524 · App. 09/446,838
Plant for removing fluor containing waste gases
Inventor:
Geir Wedde
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Feb 24, 2000
Inventor
Geir Wedde
Assignee (at issue)
ABB Flakt AB
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.