Granted Patent
Utility
US 5,352,435 · App. 07/967,974
Ionophore containing liposomes for ultrasound imaging
Inventor:
Evan C. Unger
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Oct 27, 1992
Inventor
Evan C. Unger
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.