Granted Patent
Utility
US 6,222,839 · App. 09/025,029
Packet switching apparatus
Inventors:
Soko Nakazaki, Kiyoto Fujita
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: Feb 18, 1998
Inventors
Soko Nakazaki
Kiyoto Fujita
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., 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.