Granted Patent
Utility
US 4,920,932 · App. 07/326,836
Relating to controlling emissions from two stroke engines
Inventor:
Christopher K. Schlunke
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Mar 21, 1989
Inventor
Christopher K. Schlunke
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.