3-(5- or 3-Substituted-5- or 3-isoxazolyl)-1-allyl or alkyl-4-substituted-5-substituted or unsubstituted-2-imidazolidinones for controlling weeds

Granted: Nov 24, 1981 Filed: Jan 15, 1981

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.