Granted Patent
Utility
US 6,566,458 · App. 09/737,153
Polysulfone/polysiloxane polycarbonate block copolymers
Inventors:
Miles A. Duncan, Lioba Maria Kloppenburg, Parfait Jean Marie Likibi
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Dec 14, 2000
Inventors
Miles A. Duncan
Lioba Maria Kloppenburg
Parfait Jean Marie Likibi
Assignee (at issue)
General Electric 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.