Granted Patent
Utility
US 6,231,065 · App. 09/269,135
Tractor and trailer
Inventor:
David J. Brown
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: May 14, 1999
Inventor
David J. Brown
Assignee (at issue)
Multidrive 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.