Granted Patent
Utility
US 4,337,315 · App. 06/198,090
Continuous fermentor and reactor
Inventors:
Susumu Fukushima, Hideaki Munenobu, Kazuhiro Yamade
Patented Case
View Patent ↗
Granted: Jun 29, 1982
Filed: Oct 17, 1980
Inventors
Susumu Fukushima
Hideaki Munenobu
Kazuhiro Yamade
Assignees (at issue)
Tokyo Kikakikai Co., Ltd.
KANSAI CHEMICAL ENGINEERING CO., LTD.
TAKARA SHUZO CO., LTD.
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.