Granted Patent
Utility
US 5,670,605 · App. 08/575,566
Copolycarbonate, a copolycarbonate composition, and a method for their manufacture
Inventors:
Takeshi Sakashita, Tomoaki Shimoda, Takashi Nagai, Tetsuji Kodaira
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Dec 20, 1995
Inventors
Takeshi Sakashita
Tomoaki Shimoda
Takashi Nagai
Tetsuji Kodaira
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.