Granted Patent
Utility
US 6,437,083 · App. 09/683,270
Process for preparing branched aromatic polycarbonates
Inventors:
Hans-Peter Brack, Dennis Karlik, Hendrik Verhoogt, Johannes Martinus Dina Goossens
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Dec 6, 2001
Inventors
Hans-Peter Brack
Dennis Karlik
Hendrik Verhoogt
Johannes Martinus Dina Goossens
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.