Granted Patent
Utility
US 6,480,081 · App. 09/008,071
Shock sensor
Inventor:
Kiyotaka Nakamura
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jan 16, 1998
Inventor
Kiyotaka Nakamura
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.