Polyurethane tire and wheel assembly
Patent 4164251 Issued on August 14, 1979. Estimated Expiration Date: 
November 14, 1997. 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.
November 14, 1997. 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 3168773 3926919 Unitary wheel and tire assembly Solid polyurethane tire and wheel assembly Solid polyurethane tire/wheel assembly Wheel with molded tire for carts Patent #: 4095846 InventorAssigneeApplicationNo. 05/851246 filed on 11/14/1977US Classes:152/323, Integral301/64.702, Composite528/64Organic NH, =NH or HNH nitrogen reactant contains a carbocyclic or aromatic ringExaminersPrimary: Person, Sandra M.Attorney, Agent or FirmInternational ClassesB60C 7/10 (20060101)B60C 7/00 (20060101) B29D 30/00 (20060101) B29D 30/02 (20060101) C08G 18/00 (20060101) C08G 18/76 (20060101) C08G 18/10 (20060101) B60C 1/00 (20060101) AbstractA solid industrial polyurethane tire and a wheel assembly comprised of such a tire adhered to a rigid central core, or hub. The hub is generally adaptable to fit onto an axle of an industrial vehicle. Said polyurethane tire is prepared by reacting 2,2'-dithiodianiline with a prepolymer of selected diisocyanates and selected polymeric polyester and polyether polyols and their mixtures.Other References
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