Granted Patent
Utility
US 6,064,335 · App. 08/897,663
GPS based augmented reality collision avoidance system
Inventor:
Ralph F. Eschenbach
Patented Case
View Patent ↗
Granted: May 16, 2000
Filed: Jul 21, 1997
Inventor
Ralph F. Eschenbach
Assignee (at issue)
Trimble Navigation 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.