Granted Patent
Utility
US 5,286,357 · App. 07/924,830
Corrosion sensors
Inventors:
John D. Smart, William M. Cox
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Aug 4, 1992
Inventors
John D. Smart
William M. Cox
Assignees (at issue)
British Aerospace Public Limited Co.
Capcis March Limited
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.