Granted Patent
Utility
US 5,893,710 · App. 08/769,107
Fuel-operated heater, especially an auxiliary heater for a motor vehicle
Inventor:
Dirk Brenner
Patented Case
View Patent ↗
Granted: Apr 13, 1999
Filed: Dec 18, 1996
Inventor
Dirk Brenner
Assignee (at issue)
J. Eberspaecher GmbH & Co. KG
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.