Granted Patent
Utility
US 6,726,297 · App. 09/462,491
OFDMA signal transmission apparatus and method
Inventor:
Mitsuru Uesugi
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Jan 20, 2000
Inventor
Mitsuru Uesugi
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.