Magnetic polymer particles
Patent 4335094 Issued on June 15, 1982. Estimated Expiration Date: 
June 15, 1999. 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.
June 15, 1999. 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 ReferencesMagnetic separation of biological particles Ferromagnetic separation process and material Cancer treatment method In vitro diagnostic test Controlled wave pattern ultrasonic burglar alarm Patent #: 4172253 InventorApplicationNo. 06/021603 filed on 01/26/1979US Classes:424/1.37, Radionuclide or intended radionuclide in an organic compound424/9.322, Polymer containing (e.g., polypeptide, synthetic resin, etc.)435/29, Involving viable micro-organism435/4, MEASURING OR TESTING PROCESS INVOLVING ENZYMES OR MICRO-ORGANISMS; COMPOSITION OR TEST STRIP THEREFORE; PROCESSES OF FORMING SUCH COMPOSITION OR TEST STRIP436/526MagneticExaminersPrimary: Nucker, Christine M.Attorney, Agent or FirmInternational ClassesA61K 9/50 (20060101)C12N 11/00 (20060101) C12N 11/02 (20060101) C12N 11/14 (20060101) G01N 33/543 (20060101) AbstractThis invention relates to magnetic polymer particles as carriers of biologically, preferably pharmaceutically, active substances, the utilization of the magnetic polymer particles, the method of retaining a biologically active substance, preferably a pharmaceutically active substance within a restricted area, and the method of treating diseased tissue with the use of the magnetic polymer particles.Other References
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