Golf club
Patent 4869507 Issued on September 26, 1989. Estimated Expiration Date: 
June 25, 2007. 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.
June 25, 2007. 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 1133129 1840924 2067556 2361415 3556533 3582081 Golf club head Low angular acceleration putter and method Golf club head Golf club Patent #: 4754977 InventorAssigneeApplicationNo. 07/066657 filed on 06/25/1987US Classes:473/337Perpendicular to projectile striking faceExaminersPrimary: Marlo, George J.Attorney, Agent or FirmInternational ClassA63B 53/04 (20060101)AbstractA weighting system for wood golf club heads comprising first, second and third weight receiving sockets and at least one set of removable and interchangeable weights receivable in the sockets. The first and third sockets are disposed in the heel and toe portions of the club head with axes substantially parallel to the face portion. The second socket is disposed between the first and third sockets, with a longitudinal axis substantially perpendicular to the face portion of the club head. The weights are made of materials of varying density. Weighting changes can easily be effected by removing an existing set of weights and replacing them with a set made of greater or lesser density material. Preferably, the weights are screw-threaded into the sockets. | |
