Granted Patent
Utility
US 6,136,905 · App. 08/996,477
L-lactic acid polymer composition, molded product and film
Inventors:
Kazuhiko Suzuki, Takayuki Watanabe, Yasuhiro Kitahara, Masanobu Ajioka, Shuhei Ikado
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Dec 22, 1997
Inventors
Kazuhiko Suzuki
Takayuki Watanabe
Yasuhiro Kitahara
Masanobu Ajioka
Shuhei Ikado
Assignee (at issue)
MITSUI CHEMICALS, INC.
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.