Granted Patent
Utility
US 4,666,502 · App. 06/463,581
Herbicidal N-thienyl-chloroacetamides
Inventors:
Karl Seckinger, Fred Kuhnen, Karlheinz Milzner
Patented Case
View Patent ↗
Granted: May 19, 1987
Filed: Feb 3, 1983
Inventors
Karl Seckinger
Fred Kuhnen
Karlheinz Milzner
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.