Granted Patent
Utility
US 6,293,237 · App. 09/594,791
Variable lost motion valve actuator and method
Inventor:
Joseph M. Vorih
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Jun 16, 2000
Inventor
Joseph M. Vorih
Assignee (at issue)
Diesel Engine Retarders, Inc.
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.