Granted Patent
Utility
US 6,480,476 · App. 09/177,596
Variable sleep mode for mobile stations in a mobile communications
Inventor:
Per Willars
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Oct 23, 1998
Inventor
Per Willars
Assignee (at issue)
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
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.