Granted Patent
Utility
US 5,717,056 · App. 08/767,740
Method for preparing polycarbonate by solid state polymerization
Inventors:
Godavarthi Satyanarayana Varadarajan, Swaminathan Sivaram, Bhaskar Bhairavnath Idage, Joseph A. King, Jr.
Patented Case
View Patent ↗
Granted: Feb 10, 1998
Filed: Dec 17, 1996
Inventors
Godavarthi Satyanarayana Varadarajan
Swaminathan Sivaram
Bhaskar Bhairavnath Idage
Joseph A. King, Jr.
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.