Granted Patent
Utility
US 6,724,983 · App. 09/857,883
Heater part, especially for a vehicle water or air heater which is operated with liquid fuel
Inventors:
Michael Humburg, Hermann Eppler
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Sep 28, 2001
Inventors
Michael Humburg
Hermann Eppler
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.