Granted Patent
Utility
US 6,486,294 · App. 09/683,807
Production of poly(carbonate-co-ester) copolymers
Inventors:
Hans-Peter Brack, Jan-Pleun Lens
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Feb 19, 2002
Inventors
Hans-Peter Brack
Jan-Pleun Lens
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.