Granted Patent
Utility
US 4,950,672 · App. 07/316,363
2-substituted-8.alpha.-branched chain acylaminoergolines
Inventor:
Walter Haefliger
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Feb 27, 1989
Inventor
Walter Haefliger
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.