Granted Patent
Utility
US 6,480,727 · App. 09/228,600
Using inactivity levels to extend subscriber equipment battery life
Inventor:
Mitchell R. Gerdisch
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jan 12, 1999
Inventor
Mitchell R. Gerdisch
Assignee (at issue)
Tellabs Operations, Inc.
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.