Granted Patent
Utility
US 4,741,502 · App. 06/914,103
Method and apparatus for launching a spacecraft by use of a recoverable upper rocket stage
Inventor:
Harold A. Rosen
Patented Case
View Patent ↗
Granted: May 3, 1988
Filed: Oct 1, 1986
Inventor
Harold A. Rosen
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.