Method and apparatus for measuring the product of an antigen-antibody reaction
Patent 5001053 Issued on March 19, 1991. Estimated Expiration Date: 
September 12, 2008. 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.
September 12, 2008. 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 ReferencesMethod for the assay of classes of antigen-specific antibodies Immunoassay for antigens Apparatus and method for homogeneous immunoassay Patent #: 4537861 InventorsAssigneeApplicationNo. 243296 filed on 09/12/1988US Classes:435/7.1, Involving antigen-antibody binding, specific binding protein assay or specific ligand-receptor binding assay422/68.1, Means for analyzing liquid or solid sample422/82.01, Measuring electrical property435/4, MEASURING OR TESTING PROCESS INVOLVING ENZYMES OR MICRO-ORGANISMS; COMPOSITION OR TEST STRIP THEREFORE; PROCESSES OF FORMING SUCH COMPOSITION OR TEST STRIP435/810, PACKAGED DEVICE OR KIT436/501, BIOSPECIFIC LIGAND BINDING ASSAY436/510, IMMUNOCHEMICAL PREGNANCY DETERMINATION436/518, INVOLVING AN INSOLUBLE CARRIER FOR IMMOBILIZING IMMUNOCHEMICALS436/806ELECTRICAL PROPERTY OR MAGNETIC PROPERTYExaminersPrimary: Kepplinger, Esther M.Assistant: Spiegel, Carol A. Attorney, Agent or FirmForeign Patent References
International ClassG01N 033/543AbstractA method and an apparatus for detecting antigen-antibody reaction are disclosed in which a predetermined antigen or antibody is made to attach to the surface of an oscillator and the oscillator is immersed in the specimen blood so as to cause antigen-antibody reaction on the surface thereof. The oscillator is then made to oscillate and the amount of antibody or antigen attaching to the surface of the oscillator is determined in accordance with the data concerning the oscillation of the oscillator.Other References
Field of SearchMEASURING OR TESTING PROCESS INVOLVING ENZYMES OR MICRO-ORGANISMS; COMPOSITION OR TEST STRIP THEREFORE; PROCESSES OF FORMING SUCH COMPOSITION OR TEST STRIPBIOSPECIFIC LIGAND BINDING ASSAY INVOLVING AN INSOLUBLE CARRIER FOR IMMOBILIZING IMMUNOCHEMICALS ELECTRICAL PROPERTY OR MAGNETIC PROPERTY Means for analyzing liquid or solid sample Measuring electrical property |
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