Granted Patent
Utility
US 4,289,905 · App. 05/923,438
2-Aza-1,3-dienes
Inventor:
Dieter Reinehr
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Jul 10, 1978
Inventor
Dieter Reinehr
Assignee (at issue)
Ciba-Geigy
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.