Granted Patent
Utility
US 6,178,512 · App. 09/135,860
Wireless network
Inventor:
Robert Fifield
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: Aug 18, 1998
Inventor
Robert Fifield
Assignee (at issue)
U.S. Philips Corporation
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.