Process for the manufacture of fused polyphosphate glasses
Patent 4326873 Issued on April 27, 1982. Estimated Expiration Date: 
April 3, 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 3, 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 2460356 2574047 2601395 3284368 InventorsApplicationNo. 06/137053 filed on 04/03/1980US Classes:65/134.1, Fining or homogenizing molten glass423/312, Alkali metal or ammonium containing501/45, Phosphorus containing65/66Forming product or preform from molten glassExaminersPrimary: Kellogg, Arthur D.Attorney, Agent or FirmInternational ClassesC03C 1/00 (20060101)C03C 3/12 (20060101) C03C 3/16 (20060101) C23F 11/18 (20060101) C23F 11/08 (20060101) AbstractProcess for the manufacture of fused polyphosphate glasses in which a hydrocarbon is used as the carrier for the slurry of reactants that are fed to the high temperature furnace.Field of SearchForming product or preform from molten glass |
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