Granted Patent
Utility
US 6,177,536 · App. 09/255,147
Method for quenching of catalyst in the production of low molecular weight polycarbonates
Inventors:
Takayoshi Anamizu, Akio Kanezawa, Tomoaki Shimoda, Raphael Mestanza
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: Feb 22, 1999
Inventors
Takayoshi Anamizu
Akio Kanezawa
Tomoaki Shimoda
Raphael Mestanza
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.