Granted Patent
Utility
US 4,663,369 · App. 06/870,049
Glass-fiber reinforced polypropylene resin composition
Inventors:
Yoichi Kawai, Masaru Abe, Masami Maki, Koutarou Suzuki, Minoru Hoshino
Patented Case
View Patent ↗
Granted: May 5, 1987
Filed: Jun 3, 1986
Inventors
Yoichi Kawai
Masaru Abe
Masami Maki
Koutarou Suzuki
Minoru Hoshino
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.