Composite racquet structure
Patent 3986716 Issued on October 19, 1976. Estimated Expiration Date: 
October 19, 1993. 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.
October 19, 1993. 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 ReferencesInventorsAssigneeApplicationNo. 508077 filed on 09/23/1974US Classes:473/521For racket or paddleExaminersPrimary: Apley, Richard J.Attorney, Agent or FirmInternational ClassA63B 49/00 (20060101)AbstractA compound tennis racquet is formed of extruded metal tubing and injection molded plastic. The extruded tubing has a compound cross section with a recessed central portion. The metal tubing is formed into a circular loop to define the main head portion of the tennis racquet. The loop has two depending legs extending from the head to form a portion of the handle of the tennis racquet. A plastic material is injection molded around the major portion of the extruded metal tubing to encompass the handle portion and to encompass approximately to a third to one half the racquet head. The molded plastic is continuous in the recessed center portion of the tubing to form a continuous loop around the interior of the head area of the racquet. Holes are provided in the plastic portion for the tennis racquet strings. A hollow molded plastic grip extends beyond the extremities of the depending legs of the extruded metal handle portion. | |
