Granted Patent
Utility
US 6,532,419 · App. 09/159,164
Calibration of multi-axis accelerometer in vehicle navigation system
Inventors:
John D. Begin, Ka C. Cheok
Patented Case
View Patent ↗
Granted: Mar 11, 2003
Filed: Sep 23, 1998
Inventors
John D. Begin
Ka C. Cheok
Assignee (at issue)
Magellan Dis, 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.