Granted Patent
Utility
US 5,857,433 · App. 08/891,428
Animal training and tracking device having global positioning satellite unit
Inventor:
John C. Files
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Jul 14, 1997
Inventor
John C. Files
Assignee (at issue)
John C. Files
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.