Granted Patent
Utility
US 6,539,222 · App. 09/439,496
Method and apparatus for determining disturbed and/or occupied frequency channels in a mobile communication system
Inventor:
Rolf Kaindl
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Nov 12, 1999
Inventor
Rolf Kaindl
Assignee (at issue)
WILLTEK COMMUNICATIONS GMBH
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.