Granted Patent
Utility
US 6,769,383 · App. 10/350,748
Internal combustion engine
Inventors:
Douglas A. Doers, Dean Bergman
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Jan 24, 2003
Inventors
Douglas A. Doers
Dean Bergman
Assignee (at issue)
DeltaHawk, 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.