Granted Patent
Utility
US 5,550,205 · App. 08/342,987
Copolycarbonates and manufacturing method for them
Inventors:
Takeshi Sakashita, Tomoaki Shimoda, Takashi Nagai
Patented Case
View Patent ↗
Granted: Aug 27, 1996
Filed: Nov 21, 1994
Inventors
Takeshi Sakashita
Tomoaki Shimoda
Takashi Nagai
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.