Granted Patent
Utility
US 6,283,849 · App. 09/679,908
Vehicle filtration control system
Inventor:
Neal G. Shields
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Oct 5, 2000
Inventor
Neal G. Shields
Assignee (at issue)
Specific Cruise Systems, 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.