Granted Patent
Utility
US 5,583,219 · App. 08/430,657
Macrocyclic chelating agent
Inventors:
Ramaswamy Subramanian, James Colony
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Apr 28, 1995
Inventors
Ramaswamy Subramanian
James Colony
Assignee (at issue)
AKZO NOBEL N.V.
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.