Granted Patent
Utility
US 5,759,469 · App. 08/719,514
Method for preparing molded articles of syndiotactic polypropylene
Inventors:
Tadashi Asanuma, Tateyo Sasaki, Mitsuru Ito, Tetusnosuke Shiomura
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Sep 25, 1996
Inventors
Tadashi Asanuma
Tateyo Sasaki
Mitsuru Ito
Tetusnosuke Shiomura
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.