Granted Patent
Utility
US 6,540,928 · App. 09/658,023
Magnetic pole fabrication process and device
Inventors:
Boris Kobrin, Edward W. Ostan
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Sep 8, 2000
Inventors
Boris Kobrin
Edward W. Ostan
Assignee (at issue)
Unaxis USA 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.