Granted Patent
Utility
US 5,647,534 · App. 08/532,460
Device for heating an interior of an electric vehicle
Inventors:
Michael Kelz, Wolfgang Odebrecht
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Sep 22, 1995
Inventors
Michael Kelz
Wolfgang Odebrecht
Assignee (at issue)
MERCEDES-BENZ GROUP AG
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.