Granted Patent
Utility
US 4,773,750 · App. 06/939,278
Deep-UV lithography
Inventor:
John H. Bruning
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Dec 12, 1986
Inventor
John H. Bruning
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.