Granted Patent
Utility
US 6,019,229 · App. 08/993,285
Self-centering, floating retainer for spin-on filter
Inventor:
Prabhakar B. Rao
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Dec 18, 1997
Inventor
Prabhakar B. Rao
Assignee (at issue)
Fleetguard, 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.