Granted Patent
Utility
US 4,906,280 · App. 07/108,409
Tertiary butylhydrazides as plant growth regulators
Inventors:
Stanley R. Sandler, Shyam B. Advani
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Oct 14, 1987
Inventors
Stanley R. Sandler
Shyam B. Advani
Assignee (at issue)
Pennwalt Corporation
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.