Granted Patent
Utility
US 6,180,702 · App. 09/371,137
Flame retardant polycarbonate composition
Inventors:
James Y. J. Chung, Sivaram Krishnan, Winfried Paul
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Aug 9, 1999
Inventors
James Y. J. Chung
Sivaram Krishnan
Winfried Paul
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.