Granted Patent
Utility
US 4,430,340 · App. 05/925,013
Stabilization of PGI.sub.2 compounds with surfactants
Inventor:
Moo J. Cho
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: Jul 17, 1978
Inventor
Moo J. Cho
Assignee (at issue)
The Upjohn Co.
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.