Granted Patent
Utility
US 6,804,639 · App. 09/582,039
Celp voice encoder
Inventor:
Hiroyuki Ehara
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Jun 21, 2000
Inventor
Hiroyuki Ehara
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.