Granted Patent
Utility
US 5,730,968 · App. 08/221,714
Segmented chelating polymers as imaging and therapeutic agents
Inventors:
Dennis E. Butterfield, Dennis Fujii, David L. Ladd, Robert A. Snow, Julia S. Tan, John L. Toner
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: Mar 31, 1994
Inventors
Dennis E. Butterfield
Dennis Fujii
David L. Ladd
Robert A. Snow
Julia S. Tan
John L. Toner
Assignee (at issue)
Sterling Winthrop 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.