Granted Patent
Utility
US 6,439,162 · App. 09/765,386
Unmanned vehicle to be used in a stable or a meadow
Inventor:
Karel Van Den Berg
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Jan 22, 2001
Inventor
Karel Van Den Berg
Assignee (at issue)
Lely Research Holding AG
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.