Outsole for sport shoes
Patent 4180923 Issued on January 1, 1980. Estimated Expiration Date: 
March 8, 1998. 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.
March 8, 1998. 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 D112429 D119290 D119291 D146505 2433303 3063171 InventorApplicationNo. 05/884484 filed on 03/08/1978US Classes:36/32R, Rubber36/59C, Modified tread surface36/59RANTISLIPPING DEVICESExaminersPrimary: Kee Chi, JamesInternational ClassesA43B 13/22 (20060101)A43B 13/14 (20060101) Foreign Application Priority Data1978-01-18 DEAbstractAn outsole for a sports shoe which enables it to be used for a wider range of different types of ground than is possible with the known outsoles. The sole is provided with profile projections which are each formed by at least two elongated profile bodies which are close together or joined at one end and diverge towards the other end to radiate on one side only of the projection. The projections when stressed counter to the direction of divergence of the profile bodies provide increased support, but provide less support when stressed in the opposite direction. This is particularly true if the profile bodies are constructed of a springily resilient material. By appropriately arranging the profile bodies on the outsole, controlled account can be taken of the requirements in respect of safety against slipping and the sliding characteristics, of the sport shoe.Other References
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