Granted Patent
Utility
US 6,226,983 · App. 09/326,324
Fuel injected heat exchanger for internal combustion engine exhaust
Inventor:
Michael J. Roden
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Jun 7, 1999
Inventor
Michael J. Roden
Assignee (at issue)
Professional Chemicals Corporation
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.