Granted Patent
Utility
US 4,548,641 · App. 06/497,928
Herbicides: N,N-dialkyl-2-(4-substituted-1-naphthoxy) propionamides
Inventors:
Francis H. Walker, Don R. Baker
Patented Case
View Patent ↗
Granted: Oct 22, 1985
Filed: May 25, 1983
Inventors
Francis H. Walker
Don R. Baker
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.