Granted Patent
Utility
US 5,256,718 · App. 07/654,004
Flame retardant polyamide thermoplastic resin composition
Inventors:
Sanehiro Yamamoto, Hideki Sakai, Hirotaka Aso, Kazuo Ishiwatari, Fumitoshi Ikejiri
Patented Case
View Patent ↗
Granted: Oct 26, 1993
Filed: Feb 12, 1991
Inventors
Sanehiro Yamamoto
Hideki Sakai
Hirotaka Aso
Kazuo Ishiwatari
Fumitoshi Ikejiri
Assignee (at issue)
Mitsui Petrochemical Industries, Ltd.
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.