Granted Patent
Utility
US 4,789,516 · App. 07/050,222
Production of sustained released system
Inventor:
Franklin Lim
Patented Case
View Patent ↗
Granted: Dec 6, 1988
Filed: May 14, 1987
Inventor
Franklin Lim
Assignee (at issue)
Damon Biotech, 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.