Granted Patent
Utility
US 6,213,629 · App. 09/398,015
Device for mixing flue gas with particulate material and liquid
Inventor:
Nils Bringfors
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Sep 17, 1999
Inventor
Nils Bringfors
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.