Oxygen sensor
Patent 4314996 Issued on February 9, 1982. Estimated Expiration Date: 
April 1, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 1, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3400054 3558280 3751968 3922204 Gas-sensor element and method for detecting reducing gas or oxygen gas Gas-sensor element and method for detecting oxidizable gas Gas detecting sensor Gas component sensing apparatus Oxygen sensor Method of manufacturing a gas sensor Patent #: 4221827 InventorsAssigneeApplicationNo. 06/136404 filed on 04/01/1980US Classes:422/98, Analysis based on electrical measurement338/34, Gas, vapor, or moisture absorbing or collecting422/94Combustible gas detectorExaminersPrimary: Kaplan, G. L.Attorney, Agent or FirmInternational ClassesF02D 35/02 (20060101)G01N 27/12 (20060101) G01N 27/16 (20060101) G01N 27/14 (20060101) Foreign Application Priority Data1979-04-04 JPAbstractAn oxygen sensor element comprising a substrate made of a compound oxide of the perovskite type and a pair of electrodes electrically connected to the substrate. The compound oxide has a formula ABO3 in which A represents an element of the lanthanum family, an alkaline earth metal or a mixture thereof and B is a transition metal. | |
