Granted Patent
Utility
US 4,544,398 · App. 06/561,851
N-Carbonyl-N-(5,6-dihydro-2H-3-pyranylmethyl)-4-haloanilines as herbicides
Inventors:
Teresa M. Tam, Don R. Baker
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Dec 15, 1983
Inventors
Teresa M. Tam
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.