Granted Patent
Utility
US 4,771,201 · App. 06/187,894
Method and apparatus for thermionic energy conversion
Inventor:
Bernard A. Free
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Sep 17, 1980
Inventor
Bernard A. Free
Assignee (at issue)
INTELSAT CORPORATION
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.