Granted Patent
Utility
US 5,714,604 · App. 08/065,963
Process for the preparation of azamacrocyclic or acyclic aminophosphonate ester derivatives
Inventor:
Garry E. Kiefer
Patented Case
View Patent ↗
Granted: Feb 3, 1998
Filed: May 6, 1993
Inventor
Garry E. Kiefer
Assignee (at issue)
THE DOW CHEMICAL 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.