Granted Patent
Utility
US 6,425,754 · App. 09/529,858
Method of purifying waste gases, and a gas burner
Inventor:
Nils Lindskog
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Apr 19, 2000
Inventor
Nils Lindskog
Assignee (at issue)
KANTHAL 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.