Granted Patent
Utility
US 6,404,204 · App. 09/562,849
Sensor and sensor system for liquid conductivity, temperature and depth
Inventors:
Guy J. Farruggia, Allan B. Fraser
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: May 1, 2000
Inventors
Guy J. Farruggia
Allan B. Fraser
Assignee (at issue)
Arete Associates
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.