Granted Patent
Utility
US 4,661,456 · App. 06/569,021
Method for cultivation of pseudomonas bacteria
Inventors:
Hideaki Yamada, Koitchiro Ryuno, Kanehiko Enomoto, Ichiro Watanabe
Patented Case
View Patent ↗
Granted: Apr 28, 1987
Filed: Jan 9, 1984
Inventors
Hideaki Yamada
Koitchiro Ryuno
Kanehiko Enomoto
Ichiro Watanabe
Assignees (at issue)
Nitto Kagaku Kogyo Kabushiki Kaisha
Hideaki Yamada
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.