Granted Patent
Utility
US 4,437,969 · App. 06/366,721
Offset-gate chemical-sensitive field-effect transistors (OG-CHEMFETS) with electrolytically-programmable selectivity
Inventors:
Arthur K. Covington, Alastair Sibbald
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Apr 8, 1982
Inventors
Arthur K. Covington
Alastair Sibbald
Assignee (at issue)
Corning Glass Works
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.