Granted Patent
Utility
US 4,629,499 · App. 06/589,830
Herbicide compositions of extended soil life
Inventors:
Raymond A. Felix, Joanna K. Hsu
Patented Case
View Patent ↗
Granted: Dec 16, 1986
Filed: Mar 15, 1984
Inventors
Raymond A. Felix
Joanna K. Hsu
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.