Granted Patent
Utility
US 4,368,286 · App. 06/244,875
Thermoplastic polyester resin composition which is quickly crystallizable
Inventors:
Masahiro Hayashi, Tamotsu Yoshimura, Seiichi Mukai, Masaharu Shikama, Hideto Kusumoto, Hideki Yamanouchi
Patented Case
View Patent ↗
Granted: Jan 11, 1983
Filed: Mar 18, 1981
Inventors
Masahiro Hayashi
Tamotsu Yoshimura
Seiichi Mukai
Masaharu Shikama
Hideto Kusumoto
Hideki Yamanouchi
Assignee (at issue)
Mitsubishi Chemical 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.