Granted Patent
Utility
US 6,724,944 · App. 09/380,918
Adaptive filter
Inventors:
Ossi Kalevo, Marta Karczewicz
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Jan 18, 2000
Inventors
Ossi Kalevo
Marta Karczewicz
Assignee (at issue)
Nokia Mobile Phones Ltd.
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.