Granted Patent
Utility
US 6,469,128 · App. 09/682,210
Process and apparatus for preparing a poly(arylene ether)
Inventors:
Hua Guo, Hugo Ingelbrecht, David Parrillo, Probjot Singh
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Aug 7, 2001
Inventors
Hua Guo
Hugo Ingelbrecht
David Parrillo
Probjot Singh
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.