Granted Patent
Utility
US 4,509,974 · App. 06/432,468
S-n-Butyl-N,N-diisopropyl thiocarbamate as a selective herbicide in cotton
Inventors:
Reed A. Gray, Grant K. Joo
Patented Case
View Patent ↗
Granted: Apr 9, 1985
Filed: Oct 4, 1982
Inventors
Reed A. Gray
Grant K. Joo
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.