Granted Patent
Utility
US 4,622,397 · App. 06/752,288
3-chloro-as-triazin-5-ones
Inventor:
Beat Bohner
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Jul 5, 1985
Inventor
Beat Bohner
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.