Footwear outer sole
Patent 4141158 Issued on February 27, 1979. Estimated Expiration Date: 
March 29, 1997. 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 29, 1997. 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 D157989 3629051 InventorsAssigneeApplicationNo. 05/782376 filed on 03/29/1977US Classes:36/32R, Rubber36/59CModified tread surfaceExaminersPrimary: Kee Chi, JamesAttorney, Agent or FirmInternational ClassesA43B 13/22 (20060101)A43B 13/14 (20060101) Foreign Application Priority Data1976-03-29 DEAbstractA profiled outer sole for shoes made of a material having rubber-elastic properties with the sole including a tread surface having a front tread end portion, rear tread end portion, a profiled middle area and profiled marginal areas arranged on respective sides of the middle area. The front tread end portion, the rear tread end portion and each of the marginal areas include outer edges adjoining the tread surface to a shell rim of the outer sole with each of the outer edges being rounded with a predetermined radius. The marginal areas define foundation strips having spaced block-shaped profiled projections enclosing box-shaped profiled projections with a number of groove-shaped slots being substantially uniformly distributed along each of the foundation strips. | |
