Granted Patent
Utility
US 6,435,170 · App. 09/920,224
Crankcase bypass system with oil scavenging device
Inventors:
Joseph C. Hamelink, Stephen H. Hill
Patented Case
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Granted: Aug 20, 2002
Filed: Aug 1, 2001
Inventors
Joseph C. Hamelink
Stephen H. Hill
Assignee (at issue)
DANA LIMITED
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.