Granted Patent
Utility
US 4,826,529 · App. 06/737,371
Substituted tetrazolinones and herbicidal compositions thereof
Inventors:
Rupert A. Covey, Patricia J. Forbes, Allyn R. Bell, Allen R. Blem
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: May 23, 1985
Inventors
Rupert A. Covey
Patricia J. Forbes
Allyn R. Bell
Allen R. Blem
Assignee (at issue)
Uniroyal Chemical Company, Inc.
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.