Granted Patent
Utility
US 4,880,185 · App. 07/248,266
Low pressure reaction control propulsion system for a spacecraft
Inventor:
Steven L. Apfel
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Sep 21, 1988
Inventor
Steven L. Apfel
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.