Granted Patent
Utility
US 5,506,568 · App. 08/449,481
Shock sensor
Inventor:
Chau-Ho Chen
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: May 30, 1995
Inventor
Chau-Ho Chen
Assignee (at issue)
Nutek Corp.
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.