Granted Patent
Utility
US 4,699,339 · App. 06/707,278
Apparatus and method for transporting a spacecraft and a fluid propellant from the earth to a substantially low gravity environment above the earth
Inventors:
Harold A. Rosen, Alois Wittmann
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Mar 1, 1985
Inventors
Harold A. Rosen
Alois Wittmann
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.