Granted Patent
Utility
US 6,497,204 · App. 09/959,047
Stratified scavenging two-stroke cycle engine
Inventors:
Hiroshi Miyazaki, Takamasa Otsuji
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Oct 15, 2001
Inventors
Hiroshi Miyazaki
Takamasa Otsuji
Assignee (at issue)
Komatsu Zenoah Co.
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.