Granted Patent
Utility
US 4,943,395 · App. 07/327,773
Process of vitrifying radioactive liquid waste with suppressed formation of gaseous ruthenium
Inventors:
Noriaki Sasaki, Kazuhisa Matsunaka
Patented Case
View Patent ↗
Granted: Jul 24, 1990
Filed: Mar 23, 1989
Inventors
Noriaki Sasaki
Kazuhisa Matsunaka
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.