Granted Patent
Utility
US 4,880,739 · App. 07/104,566
Method of cultivation of pseudomonas bacteria
Inventors:
Hideaki Yamada, Kanehiko Enomoto, Ichiro Watanabe
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Oct 2, 1987
Inventors
Hideaki Yamada
Kanehiko Enomoto
Ichiro Watanabe
Assignees (at issue)
Hideaki Yamada
Nitto Kagaku Kogyo Kabushiki Kaisha
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.