Granted Patent
Utility
US 4,277,939 · App. 06/027,971
Ion beam profile control apparatus and method
Inventor:
Julius Hyman, Jr.
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Apr 9, 1979
Inventor
Julius Hyman, Jr.
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.