Granted Patent
Utility
US 4,737,637 · App. 06/920,020
Mass separator for ionized cluster beam
Inventor:
Wolfgang Knauer
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: Oct 15, 1986
Inventor
Wolfgang Knauer
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.