Granted Patent
Utility
US 6,338,323 · App. 09/669,567
Vane type variable valve timing control apparatus and control method
Inventor:
Kenichi Machida
Patented Case
View Patent ↗
Granted: Jan 15, 2002
Filed: Sep 26, 2000
Inventor
Kenichi Machida
Assignee (at issue)
Unisia Jecs Corporation
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.