Granted Patent
Utility
US 6,236,183 · App. 09/254,004
Device for sensing the angular position for controlling a synchronous motor excited by a permanent magnet
Inventor:
Ulrich Schroeder
Patented Case
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Granted: May 22, 2001
Filed: Mar 1, 1999
Inventor
Ulrich Schroeder
Assignee (at issue)
SOCIETE DE MECANIQUE MAGNETIQUE
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.