Granted Patent
Utility
US 5,725,840 · App. 08/669,383
Steroidal ester contrast media for x-ray and magnetic resonance imaging
Inventors:
Jo Klaveness, Frode Rise, John Varadarajan, Arne J.o slashed.rgen Aasen
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Oct 4, 1996
Inventors
Jo Klaveness
Frode Rise
John Varadarajan
Arne J.o slashed.rgen Aasen
Assignee (at issue)
NYCOMED IMAGING AS
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.