Protective bumper strip, especially for wide body tennis racquets
Patent 5029859 Issued on July 9, 1991. Estimated Expiration Date: 
April 10, 2009. 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.
April 10, 2009. 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 3702701 3805366 Game ball racket wherein certain racket components are structurally integrated with the racket frame by the string with which the racket is strung Games rackets Metal racketball rackets Racket having thickened shaft portion Racket frame having holes for tailoring frame stiffness Patent #: 4903967 InventorApplicationNo. 335279 filed on 04/10/1989US Classes:473/539Elongated string-hole liner (e.g., grommet, bushing, etc.)ExaminersPrimary: Layno, Benjamin H.Attorney, Agent or FirmForeign Patent References
International ClassA63B 049/14AbstractA bumper strip for tennis racquets, particularly for wide body tennis racquets, includes a groove portion that fits into the frame stringing groove and with grommet pegs that extend into the string holes in the raquet frame, and a pair of side flanges that cover the outside surface of the racquet. The flanges include a series of axially spaced, trapezoidal cutouts located between the grommet pegs so as to reduce the dead weight of the strip, without impairing the protective function of the stip or impairing its structural integrity. | |
