Granted Patent
Utility
US 5,264,174 · App. 07/955,033
Process for producing compositely reinforced polypropylene resin composition
Inventors:
Hiroshi Takei, Rikio Yonaiyama, Minoru Yoshimitsu, Nobukazu Atsumi
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Oct 1, 1992
Inventors
Hiroshi Takei
Rikio Yonaiyama
Minoru Yoshimitsu
Nobukazu Atsumi
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.