Granted Patent
Utility
US 6,584,443 · App. 09/553,590
Apparatus and method for audio data/audio-related information transfer
Inventors:
Akihisa Kawamura, Naoki Ejima, Masatoshi Shimbo
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Apr 20, 2000
Inventors
Akihisa Kawamura
Naoki Ejima
Masatoshi Shimbo
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.