Granted Patent
Utility
US 4,929,430 · App. 07/365,115
Process for preparation of uranium tetrafluoride
Inventors:
Keiichiro Otomura, Takayuki Yamashita, Setsuo Kanemitsu, Shigetoshi Nakabayashi, Hideo Miki
Patented Case
View Patent ↗
Granted: May 29, 1990
Filed: Jun 12, 1989
Inventors
Keiichiro Otomura
Takayuki Yamashita
Setsuo Kanemitsu
Shigetoshi Nakabayashi
Hideo Miki
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.