Granted Patent
Utility
US 6,819,947 · App. 09/852,763
Foldable portable telephone
Inventors:
Tatsumi Okuda, Motoaki Mushiga
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: May 11, 2001
Inventors
Tatsumi Okuda
Motoaki Mushiga
Assignee (at issue)
SANYO ELECTRIC 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.