Granted Patent
Utility
US 5,758,288 · App. 08/794,261
Signal time of arrival position determining method for calculating cellular telephone billing charges
Inventors:
Michael Dunn, Don H. Atherly, Douglas O. Reudink, Martin Feuerstein, Ronald E. Foerster, Ching Chuang, Dino J. Vendetti
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Jan 31, 1997
Inventors
Michael Dunn
Don H. Atherly
Douglas O. Reudink
Martin Feuerstein
Ronald E. Foerster
Ching Chuang
Dino J. Vendetti
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.