Granted Patent
Utility
US 6,346,597 · App. 09/472,467
Method for making polyester carbonates
Inventors:
Timothy Edward Banach, Gregory Ronald Gillette
Patented Case
View Patent ↗
Granted: Feb 12, 2002
Filed: Dec 27, 1999
Inventors
Timothy Edward Banach
Gregory Ronald Gillette
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.