Granted Patent
Utility
US 4,829,018 · App. 06/879,738
Multilevel integrated circuits employing fused oxide layers
Inventor:
Sven E. Wahlstrom
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Jun 27, 1986
Inventor
Sven E. Wahlstrom
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.