Granted Patent
Utility
US 5,628,936 · App. 08/456,283
Hybrid paucilamellar lipid vesicles
Inventor:
Donald F. H. Wallach
Patented Case
View Patent ↗
Granted: May 13, 1997
Filed: May 31, 1995
Inventor
Donald F. H. Wallach
Assignee (at issue)
Micro-Pak, Inc.
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.