Granted Patent
Utility
US 4,339,536 · App. 06/156,117
Process for the preparation of long-chain dicarboxylic acids by fermentation
Inventors:
Koichi Kato, Namio Uemura
Patented Case
View Patent ↗
Granted: Jul 13, 1982
Filed: Jun 3, 1980
Inventors
Koichi Kato
Namio Uemura
Assignee (at issue)
Nippon Mining Company Limited
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.