Granted Patent
Utility
US 6,731,931 · App. 09/250,401
Idle mode measurement
Inventors:
Mark Grayson, Dennis Mullins, Keith Norman Guy Hungerford, Richard Wyrwas
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Feb 16, 1999
Inventors
Mark Grayson
Dennis Mullins
Keith Norman Guy Hungerford
Richard Wyrwas
Assignee (at issue)
ICO Services Limited
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.