Granted Patent
Utility
US 6,732,702 · App. 10/057,545
Combustion chamber
Inventors:
Zhengbai Liu, Xinqun Gui
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Jan 23, 2002
Inventors
Zhengbai Liu
Xinqun Gui
Assignee (at issue)
International Engine Intellectual Property Company, LLC
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.