Granted Patent
Utility
US 4,634,871 · App. 06/691,255
Method and apparatus for spot shaping and blanking a focused beam
Inventor:
Wolfgang Knauer
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Jan 14, 1985
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.