Granted Patent
Utility
US 6,744,351 · App. 09/817,716
Central radio device and associated appliance
Inventors:
Luiz Lei, Chi Biu Wong
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Mar 26, 2001
Inventors
Luiz Lei
Chi Biu Wong
Assignee (at issue)
Litech Electronic Products Limited
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.