Granted Patent
Utility
US 6,158,592 · App. 09/302,303
End plate for spin-on filters
Inventors:
David Reinhart, Edward Allen Covington
Patented Case
View Patent ↗
Granted: Dec 12, 2000
Filed: Apr 30, 1999
Inventors
David Reinhart
Edward Allen Covington
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.