Granted Patent
Utility
US 5,847,140 · App. 08/465,049
Intermediates for the manufacture of herbicidal 1-{ 2-(cyclopropylcarbonyl) Phenyl! Sulfamoyl}-3-(4,6-dialkoxy-2-pyrimidinyl) urea compounds
Inventor:
Thomas Walter Drabb
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: Jun 6, 1995
Inventor
Thomas Walter Drabb
Assignee (at issue)
American Cyanamid 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.