Granted Patent
Utility
US 6,298,811 · App. 09/242,385
Stratified scavenging two-cycle engine
Inventors:
Toshiharu Sawada, Masanori Noguchi, Buhei Kobayashi
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: Feb 16, 1999
Inventors
Toshiharu Sawada
Masanori Noguchi
Buhei Kobayashi
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.