Granted Patent
Utility
US 6,640,834 · App. 10/213,194
Electrohydraulic valve for controlling a cam shaft phasing mechanism of an internal combustion engine
Inventors:
Eric P. Hamkins, Edward A. Flynn
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Aug 6, 2002
Inventors
Eric P. Hamkins
Edward A. Flynn
Assignee (at issue)
HUSCO International, 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.