Granted Patent
Utility
US 4,643,846 · App. 06/673,176
Process for the treatment of radioactive sodium
Inventors:
Makoto Kanai, Hideaki Aikawa, Eiichi Inada, Katsuyuki Ohtsuka
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Nov 19, 1984
Inventors
Makoto Kanai
Hideaki Aikawa
Eiichi Inada
Katsuyuki Ohtsuka
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.