Waterproofing structure
Patent 4467015 Issued on August 21, 1984. Estimated Expiration Date: 
November 2, 2001. 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 2, 2001. 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 3186896 Water barrier panel Method of forming a water barrier around foundations Method of making a water barrier panel Self-adhering stencil Bentonite-gelled oil waterproofing composition Patent #: 4209568 InventorApplicationNo. 06/317059 filed on 11/02/1981US Classes:428/454, Sand, clay or mica (silica excluded)405/263, Chemical428/906, ROLL OR COIL52/169.14With waterproofing means; e.g., covering, coating, or laminaExaminersPrimary: Epstein, Henry F.Attorney, Agent or FirmInternational ClassesE04B 1/66 (20060101)E02D 31/00 (20060101) E02D 31/02 (20060101) AbstractThe present invention relates to a waterproofing structure and method, and, in particular, to a flexible water-impervious sheet material, and to a method of using same, for providing an effective barrier against water seepage. | |
