Granted Patent
Utility
US 4,984,736 · App. 07/363,679
Heater for motor vehicles which can be operated on several power settings
Inventors:
Peter Reiser, Edwin Steiert, Wolfgang Schaffert
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Jun 9, 1989
Inventors
Peter Reiser
Edwin Steiert
Wolfgang Schaffert
Assignee (at issue)
J. Eberspacher
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.