Granted Patent
Utility
US 5,178,850 · App. 07/538,966
Crystalline sugar alcohol containing uniformly dispersed liquid pharmaceutical compound
Inventor:
James W. DuRoss
Patented Case
View Patent ↗
Granted: Jan 12, 1993
Filed: Jun 15, 1990
Inventor
James W. DuRoss
Assignee (at issue)
ICI Americas, 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.