Granted Patent
Utility
US 5,313,159 · App. 07/982,204
Magnetic encoder with composite magnet
Inventor:
Elmer C. Allwine, Jr.
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Nov 25, 1992
Inventor
Elmer C. Allwine, Jr.
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.