Granted Patent
Utility
US 6,693,289 · App. 09/499,435
Operationally positionable source magnet field
Inventors:
Marvin G. March, Stephen W. Toy
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Feb 7, 2000
Inventors
Marvin G. March
Stephen W. Toy
Assignee (at issue)
NEC Electronics Corporation
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.