Granted Patent
Utility
US 6,572,768 · App. 10/105,586
Oil filter apparatus
Inventors:
L. Steven Cline, Ledu Nguyen, John W. Wall, Allen B. Wright
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Mar 25, 2002
Inventors
L. Steven Cline
Ledu Nguyen
John W. Wall
Allen B. Wright
Assignee (at issue)
Arvin Technologies, 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.