Granted Patent
Utility
US 5,177,331 · App. 07/726,099
Impact detector
Inventors:
David B. Rich, Dan W. Chilcott
Patented Case
View Patent ↗
Granted: Jan 5, 1993
Filed: Jul 5, 1991
Inventors
David B. Rich
Dan W. Chilcott
Assignee (at issue)
DELCO ELECTRONICS CORPORATION
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.