Procedures for the preparation and fabrication of concrete additives produced from natural products
Patent 4961789 Issued on October 9, 1990. Estimated Expiration Date: 
November 18, 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.
November 18, 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 ReferencesCationic aqueous bituminous emulsion-aggregate slurries Patent #: 4810299 InventorApplicationNo. 272811 filed on 11/18/1988US Classes:106/823, Organic material containing additive (e.g., carbohydrate, bituminous material, etc.)106/217.8, With bituminous or tarry residue, hydrocarbon, or naturally occurring wax106/217.9, With element or inorganic compound except water106/316, Miscellaneous106/804Carbohydrate containingExaminersPrimary: Dixon, William R. Jr.Assistant: Wright, Alan Attorney, Agent or FirmInternational ClassC04B 024/10AbstractA process is disclosed for manufacturing water reducing plasticizing and hardening-retarding plasticizing additives for concrete, using sugarcane derivatives that modify the structural characterisitics of the concrete, resulting in improved plasticity and density and altering of the curing time. | |
