Granted Patent
Utility
US 5,884,489 · App. 08/744,340
Superconducting magnets
Inventors:
Patrick William Retz, Keith White
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Nov 7, 1996
Inventors
Patrick William Retz
Keith White
Assignee (at issue)
Oxford Magnet Technology Limited
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.