Granted Patent
Utility
US 4,999,613 · App. 07/343,860
Remote confinement system
Inventors:
Lon A. Williamson, Frank C. Pennypacker, Donald W. Collier, Kip L. Fuller
Patented Case
View Patent ↗
Granted: Mar 12, 1991
Filed: Apr 26, 1989
Inventors
Lon A. Williamson
Frank C. Pennypacker
Donald W. Collier
Kip L. Fuller
Assignee (at issue)
Guardian Technologies 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.