Granted Patent
Utility
US 4,951,673 · App. 07/234,193
Magnetic resonance imaging with perfluorocarbon hydrides
Inventor:
David Long
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Aug 19, 1988
Inventor
David Long
Assignee (at issue)
Alliance Pharmaceutical Corp.
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.