Granted Patent
Utility
US 6,283,099 · App. 09/486,795
Internal combustion engine
Inventor:
Michael Dopona
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Mar 2, 2000
Inventor
Michael Dopona
Assignee (at issue)
Bombardier-Rotax Gesellschaft mbH
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.