Granted Patent
Utility
US 4,454,007 · App. 06/461,479
Ion-selective layered sensor and methods of making and using the same
Inventor:
Salvatore J. Pace
Patented Case
View Patent ↗
Granted: Jun 12, 1984
Filed: Jan 27, 1983
Inventor
Salvatore J. Pace
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND 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.