Granted Patent
Utility
US 5,258,735 · App. 07/784,207
Multi-pole composite magnet used in a magnetic encoder
Inventor:
Elmer C. Allwine, Jr.
Patented Case
View Patent ↗
Granted: Nov 2, 1993
Filed: Oct 28, 1991
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.