Granted Patent
Utility
US 5,326,572 · App. 07/489,166
Freeze-dried polymer dispersions and the use thereof in preparing sustained-release pharmaceutical compositions
Inventors:
Dev K. Mehra, Chimanlal I. Patel, Clayton I. Bridges, Jr.
Patented Case
View Patent ↗
Granted: Jul 5, 1994
Filed: Mar 5, 1990
Inventors
Dev K. Mehra
Chimanlal I. Patel
Clayton I. Bridges, Jr.
Assignee (at issue)
FMC CORPORATION
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.