Granted Patent
Utility
US 6,085,701 · App. 09/289,732
Coil tube heater for a used-oil fired furnace
Inventors:
Norman M. Stauffer, Emanuel S. Beiler, Frederick W. Phillips, Benuel F. Smoker, Glenn A. Musser
Patented Case
View Patent ↗
Granted: Jul 11, 2000
Filed: Apr 12, 1999
Inventors
Norman M. Stauffer
Emanuel S. Beiler
Frederick W. Phillips
Benuel F. Smoker
Glenn A. Musser
Assignee (at issue)
Clean Burn, 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.