Granted Patent
Utility
US 5,409,373 · App. 08/227,340
Burner housing for multi oil furnaces
Inventors:
Frederick W. Phillips, David J. Yoder
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Apr 14, 1994
Inventors
Frederick W. Phillips
David J. Yoder
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.