Granted Patent
Utility
US 6,636,491 · App. 09/367,921
Access control method for a mobile communications system
Inventors:
Hannu Kari, Mikko Puuskari, Serge Haumont
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Oct 22, 1999
Inventors
Hannu Kari
Mikko Puuskari
Serge Haumont
Assignee (at issue)
Nokia
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.