Granted Patent
Utility
US 5,749,516 · App. 08/656,184
Vehicle heater with control device
Inventor:
Michael Humburg
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Jun 3, 1996
Inventor
Michael Humburg
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.