Granted Patent
Utility
US 6,418,890 · App. 09/699,406
Control assembly for exhaust timing control
Inventor:
Michael Dopona
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Oct 31, 2000
Inventor
Michael Dopona
Assignee (at issue)
Bombardier-Rotax GmbH
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.