Granted Patent
Utility
US 4,719,880 · App. 06/866,427
Two stroke cycle internal combustion engines
Inventors:
Christopher K. Schlunke, Robert M. Davis
Patented Case
View Patent ↗
Granted: Jan 19, 1988
Filed: May 23, 1986
Inventors
Christopher K. Schlunke
Robert M. Davis
Assignee (at issue)
Orbital Engine Company Pty Limited
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.