Granted Patent
Utility
US 6,366,780 · App. 09/168,946
Real-time spectrum usage data collection in a wireless communication system
Inventor:
Prem A. Obhan
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: Oct 8, 1998
Inventor
Prem A. Obhan
Assignee (at issue)
Nortel Networks 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.