Granted Patent
Utility
US 6,812,320 · App. 10/105,565
Method for copolyestercarbonate synthesis
Inventors:
James Manio Silva, David Michel Dardaris, Gregory Allen O'Neil, Paul Dean Sybert, Zhaohui Su
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Mar 25, 2002
Inventors
James Manio Silva
David Michel Dardaris
Gregory Allen O'Neil
Paul Dean Sybert
Zhaohui Su
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.