Granted Patent
Utility
US 5,856,486 · App. 08/924,413
Polycarbonate compositions comprising hindered amine light stabilizers
Inventors:
James Edward Pickett, Randall Lee Carter, Gary E. Spilman
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Aug 27, 1997
Inventors
James Edward Pickett
Randall Lee Carter
Gary E. Spilman
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.