Granted Patent
Utility
US 4,300,624 · App. 06/103,884
Osmotic pumped heat pipe valve
Inventors:
Charles P. Minning, George L. Fleischman
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Dec 17, 1979
Inventors
Charles P. Minning
George L. Fleischman
Assignee (at issue)
Hughes Aircraft Company
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.