Granted Patent
Utility
US 4,069,038 · App. 05/647,962
Acyclic and alicyclic N-substituted halo-2-pyrrolidinones and their utility as herbicides
Inventor:
Eugene G. Teach
Patented Case
View Patent ↗
Granted: Jan 17, 1978
Filed: Jan 9, 1976
Inventor
Eugene G. Teach
Assignee (at issue)
Stauffer Chemical Company
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.