Granted Patent
Utility
US 6,561,171 · App. 10/082,910
Crankcase emission control system for crankcase breather
Inventor:
Stephen Burgess
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Feb 26, 2002
Inventor
Stephen Burgess
Assignee (at issue)
Parker-Hannifin 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.