Granted Patent
Utility
US 6,339,397 · App. 09/585,873
Portable self-contained tracking unit and GPS tracking system
Inventor:
David A. Baker
Patented Case
View Patent ↗
Granted: Jan 15, 2002
Filed: Jun 1, 2000
Inventor
David A. Baker
Assignee (at issue)
Lat-Lon LLC
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.