Granted Patent
Utility
US 4,661,202 · App. 06/701,350
Method of manufacturing semiconductor device
Inventor:
Kiyofumi Ochii
Patented Case
View Patent ↗
Granted: Apr 28, 1987
Filed: Feb 13, 1985
Inventor
Kiyofumi Ochii
Assignee (at issue)
Kabushiki Kaisha Toshiba
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.