Game ball
Patent 4887814 Issued on December 19, 1989. Estimated Expiration Date: 
September 22, 2008. 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.
September 22, 2008. 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 D235794 1150761 1931429 2194674 2270553 2859040 2866644 Helically grooved foamed football Patent #: 4772020 InventorAssigneeApplicationNo. 247666 filed on 09/22/1988US Classes:473/596Having handle or surface configuration for enhancing user`s handgrip thereonExaminersPrimary: Marlo, George J.Attorney, Agent or FirmInternational ClassA63B 043/02AbstractA ball for throwing by an individual in sport and recreational activities is defined by a body, preferably formed in the shape of a football, of resilient, elastically-deformable material having channels associated therewith helically generated to be wound around the ball substantially from one end to the other for receiving and enhancing purchase between an individual's fingers, received within the channels, and the ball when it is gripped. | |
