Granted Patent
Utility
US 6,583,256 · App. 09/753,878
Weatherable block copolyestercarbonate compositions
Inventors:
Peter Vollenberg, Hongyi Zhou, Bimal Patel
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Jan 3, 2001
Inventors
Peter Vollenberg
Hongyi Zhou
Bimal Patel
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.