Granted Patent
Utility
US 4,590,452 · App. 06/640,607
Magnetic device of apparatus in nuclear spin tomography with a shielding device
Inventors:
Gunter Ries, Horst Siebold
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Aug 14, 1984
Inventors
Gunter Ries
Horst Siebold
Assignee (at issue)
Siemens Aktiengesellschaft
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.