Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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US Patent 4793935 - Method of removing cyanuric acid from bather water
US Patent Issued on December 27, 1988
Estimated Patent Expiration Date:
May 15, 2007Estimated 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.
Estimated Patent Expiration Date:
May 15, 2007Estimated 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.AbstractA method removing cyanuric acid from bather water in swimming pools, spas, and the like. Melamine is added to the bather water in a quantity sufficient to react with the cyanuric acid and form a precipitate. The insoluble precipitate can then be vacuumed or removed through the filtration system of the pool. | InventorAssigneeApplicationNo. 07/049996 filed on 05/15/1987US Classes:210/729, Utilizing organic precipitant210/727, Including organic agent210/755, Organic210/764, Destroying microorganisms210/904-CN containingField of Search210/725, Utilizing organic precipitant210/727, Including organic agent210/728, Including organic agent210/729, Utilizing organic precipitant210/735, Nitrogen containing (e.g., amine, azo, etc.)210/755, Organic210/764, Destroying microorganisms210/908, Organic210/904-CN containingExaminersPrimary: Hruskoci, Peter A.Attorney, Agent or FirmUS Patent References2580808, 3145206, 3342674International ClassesC02F 1/52 (20060101)C02F 1/54 (20060101) |
