Granted Patent
Utility
US 6,235,192 · App. 08/942,558
Biflow drier with improved filtration
Inventors:
James J. Melfi, Gary E. Griffin
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Oct 1, 1997
Inventors
James J. Melfi
Gary E. Griffin
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.