Granted Patent
Utility
US 5,564,632 · App. 08/364,871
Secondary air nozzle and starting burner furnace apparatus
Inventor:
George J. Prohazka
Patented Case
View Patent ↗
Granted: Oct 15, 1996
Filed: Dec 27, 1994
Inventor
George J. Prohazka
Assignee (at issue)
Combustion Engineering, 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.