Granted Patent
Utility
US 6,822,041 · App. 10/301,139
Non-streaking black color formulations for polycarbonate-siloxane copolymers and blends
Inventors:
Philippe Schottland, Brett D. Ermi
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Nov 21, 2002
Inventors
Philippe Schottland
Brett D. Ermi
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.