Granted Patent
Utility
US 6,294,684 · App. 09/457,320
Method and apparatus for the continuous production of diaryl carbonates
Inventors:
Philip R. de Bruin, James S. Law, Vincentius Antonius Vriens
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Dec 8, 1999
Inventors
Philip R. de Bruin
James S. Law
Vincentius Antonius Vriens
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.