Granted Patent
Utility
US 4,475,866 · App. 06/370,545
Liquid metal mechanical pump
Inventors:
Mitsuru Kambe, Tomihiro Fukada
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Apr 21, 1982
Inventors
Mitsuru Kambe
Tomihiro Fukada
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.