Granted Patent
Utility
US 4,596,883 · App. 06/628,088
Herbicidally active substituted diphenyl ethers
Inventors:
James A. Schwindeman, Horng-Jau Lin
Patented Case
View Patent ↗
Granted: Jun 24, 1986
Filed: Jul 5, 1984
Inventors
James A. Schwindeman
Horng-Jau Lin
Assignee (at issue)
PPG Industries, 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.