Granted Patent
Utility
US 6,142,728 · App. 09/202,209
Side channel blower, in particular for supplying combustion air to the auxiliary heater of a motor vehicle
Inventors:
Michael Humburg, Hermann Eppler
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Dec 8, 1998
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.