Granted Patent
Utility
US 6,755,021 · App. 10/246,064
On-board hydrogen gas production system for stirling engines
Inventor:
Lennart Johansson
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Sep 18, 2002
Inventor
Lennart Johansson
Assignee (at issue)
STM Power, Inc.
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.