Granted Patent
Utility
US 4,277,306 · App. 05/863,521
Coil-less divertors for toroidal plasma systems
Inventor:
Tihiro Ohkawa
Patented Case
View Patent ↗
Granted: Jul 7, 1981
Filed: Dec 22, 1977
Inventor
Tihiro Ohkawa
Assignee (at issue)
General Atomics
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.