Granted Patent
Utility
US 6,574,019 · App. 09/468,340
Transmission system, and station unit and remote units to be used therein
Inventor:
Shigekazu Harada
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Dec 21, 1999
Inventor
Shigekazu Harada
Assignee (at issue)
NEC 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.