Granted Patent
Utility
US 5,221,659 · App. 07/783,535
Plant control composition and methods of use
Inventor:
Mark L. Atwater
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Oct 28, 1991
Inventor
Mark L. Atwater
Assignee (at issue)
Union Oil Company of California
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.