Granted Patent
Utility
US 6,670,805 · App. 09/961,211
Displacement sensor containing magnetic field sensing element between a pair of biased magnets movable as a unit
Inventors:
Joseph Kip Bahr, Mont A. Johnson
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: Sep 21, 2001
Inventors
Joseph Kip Bahr
Mont A. Johnson
Assignee (at issue)
Alliant Techsystems 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.