Waterproofing barrier
Patent 4344722 Issued on August 17, 1982. Estimated Expiration Date: 
January 19, 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.
January 19, 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 2847201 3234741 3326001 3380254 3415022 3732697 3759044 Method for vaulting hazardous chemical waste materials Bentonite-gelled oil waterproofing composition Pond sealing InventorAssigneeApplicationNo. 06/226409 filed on 01/19/1981US Classes:405/270, Impermeabilization405/129.75Flexible sheet or linerExaminersPrimary: Leppink, James A.Assistant: Suchfield, George A. Attorney, Agent or FirmInternational ClassesC09K 17/00 (20060101)E02D 19/00 (20060101) E02D 19/18 (20060101) E02D 31/00 (20060101) Foreign Application Priority Data1981-01-13 CAAbstractThis invention provides a method and a system for waterproofing a desired substrate, and further contemplates, a waterproof and chemical-resistant product. The method provides providing a length of flexible moisture-permeable thin, synthetic sheet material having desired characteristics, placing in contact with the substrate to be waterproofed a layer of the material, covering the layer of material with a central layer of Montmorillonite clay and placing on top of the clay a third layer of the fabric.Field of SearchOpen top, embedded container, tank, or reservoir | |
