Granted Patent
Utility
US 5,856,413 · App. 08/881,448
Polycarbonate compositions having mold-release properties
Inventors:
John J. Charles, Charles E. Lundy, Robson Mafoti
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Jun 24, 1997
Inventors
John J. Charles
Charles E. Lundy
Robson Mafoti
Assignee (at issue)
Bayer Aktiengesellschaft
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.