Granted Patent
Utility
US 5,404,749 · App. 08/043,671
Boron doped silicon accelerometer sense element
Inventor:
Leland J. Spangler
Patented Case
View Patent ↗
Granted: Apr 11, 1995
Filed: Apr 7, 1993
Inventor
Leland J. Spangler
Assignee (at issue)
Ford Motor 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.