Granted Patent
Utility
US 6,049,710 · App. 08/878,864
Wireless prepaid telephone system with dispensable instruments
Inventor:
B. G. Nilsson
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: Jun 19, 1997
Inventor
B. G. Nilsson
Assignees (at issue)
Kimberley Nanette Engen
Bettina Jean Thompson
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.