Granted Patent
Utility
US 6,142,141 · App. 08/841,786
Airflow diffuser for use with a forced-air space heater and a forced-air space heater using the same
Inventor:
Norris R. Long
Patented Case
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Granted: Nov 7, 2000
Filed: May 5, 1997
Inventor
Norris R. Long
Assignee (at issue)
The Coleman Company, 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.