Granted Patent
Utility
US 5,608,142 · App. 07/299,767
Insecticidal cotton plants
Inventors:
Kenneth Barton, Paul F. Umbeck
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Jan 23, 1989
Inventors
Kenneth Barton
Paul F. Umbeck
Assignee (at issue)
Agracetus, 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.