Granted Patent
Utility
US 6,029,074 · App. 08/850,913
Hand-held cellular telephone with power management features
Inventor:
David R. Irvin
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: May 2, 1997
Inventor
David R. Irvin
Assignee (at issue)
ERICSSON GMBH
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.