Granted Patent
Utility
US 5,341,774 · App. 08/134,619
Self supercharged two stroked cycle and engine having migrating combustion chambers
Inventor:
Frederick L. Erickson
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Oct 12, 1993
Inventor
Frederick L. Erickson
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.