Granted Patent
Utility
US 4,544,764 · App. 06/631,977
Interphenylene carbacyclin compound
Inventor:
Paul A. Aristoff
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Jul 18, 1984
Inventor
Paul A. Aristoff
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.