Granted Patent
Utility
US 6,797,754 · App. 10/231,448
Flame retardant styrenic compositions containing oxaphospholane compound as flame retardant
Inventors:
Jae Ho Yang, Galina Levchik, Alexander Balabanovich, Sang Hyun Hong
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Aug 29, 2002
Inventors
Jae Ho Yang
Galina Levchik
Alexander Balabanovich
Sang Hyun Hong
Assignee (at issue)
CHEIL INDUSTRIES INC.
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.