Granted Patent
Utility
US 5,866,677 · App. 08/886,969
Method and system for producing poly (lactic acid)
Inventors:
Hiroshi Maeda, Kunihiko Shimizu, Yutaka Miyakawa, Eiichi Kawada, Koji Yamamoto, Hitomi Ohara, Seiji Sawa, Yasuhiro Fujii, Masahiro Ito
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Jul 2, 1997
Inventors
Hiroshi Maeda
Kunihiko Shimizu
Yutaka Miyakawa
Eiichi Kawada
Koji Yamamoto
Hitomi Ohara
Seiji Sawa
Yasuhiro Fujii
Masahiro Ito
Assignees (at issue)
Kabushiki Kaisha Kobe Seiko Sho
SHIMADZU 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.