Granted Patent
Utility
US 6,647,104 · App. 09/424,651
Speech system, extension communication terminal, and method of up-loading data for communication system
Inventor:
Hiroshi Endo
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Feb 18, 2000
Inventor
Hiroshi Endo
Assignee (at issue)
Hitachi Telecom Technologies, 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.