Granted Patent
Utility
US 5,835,889 · App. 08/672,932
Method and apparatus for detecting hangover periods in a TDMA wireless communication system using discontinuous transmission
Inventor:
Pekka Kapanen
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Jun 28, 1996
Inventor
Pekka Kapanen
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.