Granted Patent
Utility
US 5,260,395 · App. 07/928,062
Method for molding syndiotactic polypropylene and molded article
Inventors:
Tadashi Asanuma, Tateyo Sasaki, Mitsuru Ito, Shigeru Kimura, Takeo Inoue
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Aug 11, 1992
Inventors
Tadashi Asanuma
Tateyo Sasaki
Mitsuru Ito
Shigeru Kimura
Takeo Inoue
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.