Granted Patent
Utility
US 5,733,572 · App. 08/346,426
Gas and gaseous precursor filled microspheres as topical and subcutaneous delivery vehicles
Inventors:
Evan C. Unger, Terry Matsunaga, David Yellowhair
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Nov 29, 1994
Inventors
Evan C. Unger
Terry Matsunaga
David Yellowhair
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.