Granted Patent
Utility
US 5,997,295 · App. 09/191,481
Inlet/exhaust structure for an outdoor furnace
Inventors:
Norman E. Mattson, Colette L. Knowles
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Nov 13, 1998
Inventors
Norman E. Mattson
Colette L. Knowles
Assignee (at issue)
MODINE MANUFACTURING COMPANY
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.