Granted Patent
Utility
US 6,024,939 · App. 08/466,377
Contrast media for ultrasonic imaging
Inventor:
Evan C. Unger
Patented Case
View Patent ↗
Granted: Feb 15, 2000
Filed: Jun 6, 1995
Inventor
Evan C. Unger
Assignee (at issue)
ImaRx 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.