Granted Patent
Utility
US 5,678,206 · App. 08/422,490
Keypad cover hinge
Inventor:
Takeshi Ishii
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Apr 12, 1995
Inventor
Takeshi Ishii
Assignee (at issue)
E.F. Johnson Company
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.