Granted Patent
Utility
US 5,219,572 · App. 07/734,120
Controlled release delivery device for macromolecular proteins
Inventors:
Kallidaikurichi N. Sivaramakrishnan, Lindy F. Miller
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Jul 25, 1991
Inventors
Kallidaikurichi N. Sivaramakrishnan
Lindy F. Miller
Assignee (at issue)
Pitman-Moore, 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.