Granted Patent
Utility
US 6,716,921 · App. 10/070,354
Propylene resin composition
Inventors:
Takanori Nakashima, Shinichi Akitaya, Yuya Ishimoto, Yasuhiro Mochizuki, Yoshitaka Morimoto, Yoshitaka Sumi
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Mar 6, 2002
Inventors
Takanori Nakashima
Shinichi Akitaya
Yuya Ishimoto
Yasuhiro Mochizuki
Yoshitaka Morimoto
Yoshitaka Sumi
Assignee (at issue)
Chisso 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.