Granted Patent
Utility
US 4,495,137 · App. 06/333,185
Nuclear reactor
Inventor:
Akira Otsubo
Patented Case
View Patent ↗
Granted: Jan 22, 1985
Filed: Dec 21, 1981
Inventor
Akira Otsubo
Assignee (at issue)
Doryokuro Kakunenryo Kaihatsu Jigyodan
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.