Games racket frame
Patent 4423869 Issued on January 3, 1984. Estimated Expiration Date: 
November 27, 2001. 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.
November 27, 2001. 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 1678637 3352566 Composite racquet structure Games racquets Frame of a game racket Racket and a method for manufacturing same Patent #: 4203596 InventorAssigneeApplicationNo. 06/325197 filed on 11/27/1981US Classes:473/536Plural fiber compositionsExaminersPrimary: Pinkham, Richard C.Assistant: Schneider, Matthew L. Attorney, Agent or FirmInternational ClassesA63B 49/02 (20060101)A63B 49/10 (20060101) Foreign Application Priority Data1980-12-03 GBAbstractA frame for a games racket comprises a hollow plastics moulding which is at least partially reinforced by means of a rigid member integrally moulded therewith. The rigid member can consist of a metal plate having perforations which, when the plate and the plastics material are moulded together, are penetrated by the plastics material, which sets therein to lock the plate to the moulding.The plate may, for example, extend over an area corresponding to the crown portion of the frame so as to provide for localized reinforcement, particularly, in the event of impact (e.g. when the racket is dropped on to a hard surface). | |
