Granted Patent
Utility
US 4,740,267 · App. 07/017,380
Energy intensive surface reactions using a cluster beam
Inventors:
Wolfgang Knauer, John L. Bartelt
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Feb 20, 1987
Inventors
Wolfgang Knauer
John L. Bartelt
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.