Construction of portion connecting golf club-head and golf club shaft
Patent 4854583 Issued on August 8, 1989. Estimated Expiration Date: 
January 13, 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.
January 13, 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 184718 1643754 1665811 1997853 2630857 2827318 3334901 3368271 3625513 Golf swing training device InventorApplicationNo. 07/298278 filed on 01/13/1989US Classes:473/312, Having core (e.g., weight, etc.) positioned in head engaging shaft end403/292MEMBER ENDS JOINED BY INSERTED SECTIONExaminersPrimary: Garrett, Robert E.Assistant: Price, Carl D. Attorney, Agent or FirmInternational ClassA63B 53/02 (20060101)Foreign Application Priority Data1986-08-29 JPAbstractA construction of portion for connecting a golf club-head (11) and a golf club shaft, comprising a vertical first elongated hole (13) extended from the upper end of and toward a point midway in the neck member (12) of the golf club-head, and a vertical second elongated hole (14) having a smaller cross section and extended downward from the base of the first elongated hole (13) in the neck member (12) of the golf club-head (11). The hollow golf shaft fitted with a reinforcing pin (16) having upper and lower fitting portions (16c, 16c) is fitted into the first and second elongated holes (13, 14). This provides an improvement in the strength of the portion connecting the golf club-head (11) and the golf club shaft (15). | |
