Granted Patent
Utility
US 6,565,620 · App. 09/722,051
Internally sourced engine air intake filtration arrangement
Inventor:
Christopher Van Greeson
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Nov 27, 2000
Inventor
Christopher Van Greeson
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.