Granted Patent
Utility
US 4,886,021 · App. 07/158,722
Multi-cylindered two stroke cycle engines
Inventors:
Kenneth P. Seeber, Christopher K. Schlunke
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Feb 23, 1988
Inventors
Kenneth P. Seeber
Christopher K. Schlunke
Assignee (at issue)
Orbital Engine Company Proprietary 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.