Granted Patent
Utility
US 4,396,542 · App. 06/299,103
Method for the total synthesis of cyclosporins, novel cyclosporins and novel intermediates and methods for their production
Inventor:
Roland Wenger
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Sep 3, 1981
Inventor
Roland Wenger
Assignee (at issue)
Sandoz AG
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.