Granted Patent
Utility
US 4,764,620 · App. 07/060,692
4-phosphorus-2-phthalimidobutyrate intermediates
Inventor:
Eugene W. Logusch
Patented Case
View Patent ↗
Granted: Aug 16, 1988
Filed: Jun 11, 1987
Inventor
Eugene W. Logusch
Assignee (at issue)
Monsanto Company
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.