Granted Patent
Utility
US 5,656,211 · App. 08/482,294
Apparatus and method for making gas-filled vesicles of optimal size
Inventors:
Evan C. Unger, Thomas McCreery, David Yellowhair, Terrence R. Barrette
Patented Case
View Patent ↗
Granted: Aug 12, 1997
Filed: Jun 7, 1995
Inventors
Evan C. Unger
Thomas McCreery
David Yellowhair
Terrence R. Barrette
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.