Granted Patent
Utility
US 6,365,689 · App. 09/485,618
Propylene/ethylene random copolymer, molding material, and molded article
Inventors:
Tsutomu Ushioda, Jun Saito, Mototake Tsutsui, Yoshitoyo Yasuda, Hiroyuki Fujita, Yoshiyuki Oogi, Minoru Adachi, Yoshitaka Morimoto, Taketo Hirose, Youichi Kugimiya, Yasuhiro Shiraishi
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: Feb 15, 2000
Inventors
Tsutomu Ushioda
Jun Saito
Mototake Tsutsui
Yoshitoyo Yasuda
Hiroyuki Fujita
Yoshiyuki Oogi
Minoru Adachi
Yoshitaka Morimoto
Taketo Hirose
Youichi Kugimiya
Yasuhiro Shiraishi
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.