Granted Patent
Utility
US 6,289,856 · App. 09/445,660
Stratified scavenging two-cycle engine
Inventor:
Masanori Noguchi
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Dec 10, 1999
Inventor
Masanori Noguchi
Assignees (at issue)
Komatsu Zenoah Co.
PETROLEUM ENERGY CENTER
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.