Granted Patent
Utility
US 5,990,263 · App. 08/610,257
Contrast agents
Inventors:
Harald Dugstad, Pal Rongved, Roald Skurtveit
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Mar 4, 1996
Inventors
Harald Dugstad
Pal Rongved
Roald Skurtveit
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.