Granted Patent
Utility
US 4,924,820 · App. 07/354,402
Exhaust gas treatment for a two stroke engine
Inventors:
Mark Lear, Christopher K. Schlunke, Kenneth P. Seeber
Patented Case
View Patent ↗
Granted: May 15, 1990
Filed: Jul 5, 1989
Inventors
Mark Lear
Christopher K. Schlunke
Kenneth P. Seeber
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.