Granted Patent
Utility
US 6,778,956 · App. 09/688,139
Voice recording-reproducing system and voice recording-reproducing method using the same
Inventors:
Hiroshi Sasaki, Masayasu Sato
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Oct 16, 2000
Inventors
Hiroshi Sasaki
Masayasu Sato
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.