Granted Patent
Utility
US 5,256,734 · App. 07/833,755
Polypropylene resin composition and method for manufacturing coated molded article of the resin composition
Inventors:
Eiichi Sugihara, Keigo Suehiro, Katsumi Sekiguchi, Minoru Hoshino
Patented Case
View Patent ↗
Granted: Oct 26, 1993
Filed: Feb 11, 1992
Inventors
Eiichi Sugihara
Keigo Suehiro
Katsumi Sekiguchi
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.