Granted Patent
Utility
US 6,732,940 · App. 10/453,181
Compact vehicle heating apparatus and method
Inventors:
Harold R. Enander, Thomas A. Acree
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Jun 2, 2003
Inventors
Harold R. Enander
Thomas A. Acree
Assignee (at issue)
Vehicle System Co., Ltd.
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.