Granted Patent
Utility
US 5,520,049 · App. 08/290,668
Acceleration responsive device
Inventor:
Joseph H. Butler
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Aug 1, 1994
Inventor
Joseph H. Butler
Assignee (at issue)
Emhart Inc.
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.