Granted Patent
Utility
US 5,686,071 · App. 08/471,264
Polymer affinity system for the delivery of cytotoxic material and other compounds to sites of disease
Inventors:
Ramaswamy Subramanian, Fang Shi
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Jun 6, 1995
Inventors
Ramaswamy Subramanian
Fang Shi
Assignee (at issue)
Perimmune Holdings, 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.