Granted Patent
Utility
US 4,388,473 · App. 06/316,256
Substituted benzoic or phenylacetic acid esters having plant growth regulating properties
Inventors:
Sidney B. Richter, Barry Van Gemert
Patented Case
View Patent ↗
Granted: Jun 14, 1983
Filed: Oct 29, 1981
Inventors
Sidney B. Richter
Barry Van Gemert
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.