Production of three-dimensional designs
Patent 4055613 Issued on October 25, 1977. Estimated Expiration Date: 
October 25, 1994. 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.
October 25, 1994. 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 ReferencesInventorAssigneeApplicationNo. 05/517175 filed on 10/23/1974US Classes:264/46.4, Shaping material and uniting to a preform or solidified layer264/219, WITH STEP OF MAKING MOLD OR MOLD SHAPING, PER SE264/225, Forming mold from fluent material264/331.19, Nitrogen containing (e.g., polyamide, polyurethane, etc.)264/338, Coating or lining264/53, Liquid to gas phase change264/54, Chemical blowing428/159, Component comprises a polymer (e.g., rubber, etc.)428/319.7Linear or thermoplasticExaminersPrimary: Anderson, PhilipAttorney, Agent or FirmInternational ClassB29C 33/38 (20060101)AbstractMethod of producing a three-dimensional pattern on a resin article which comprises producing a two-dimensional pattern on a flexible sheet or web of a heat-foamable plastic material, applying heat to cause said plastic material to expand, thus forming a three-dimensional pattern, applying a release coating to the three dimensional surface of said flexible sheet or web, contacting said three-dimensional surface with a resin plastisol, curing said resin plastisol in contact with said surface to form a solid resin object and removing said flexible sheet or web from said cured resin object to expose the three-dimensional pattern thereon.Other References
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