Golf club point of impact and relative club velocity indicator
Patent 5779556 Issued on July 14, 1998. Estimated Expiration Date: 
July 16, 2016. 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.
July 16, 2016. 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 2660436 3754764 Golf club ball-impact marker Golf club impact recording system Golf club strike indicator Patent #: 5597361 InventorsApplicationNo. 680991 filed on 07/16/1996US Classes:473/237Indication is a mark made by implement swingExaminersPrimary: Marlo, George J.Attorney, Agent or FirmInternational ClassA63B 069/36AbstractA golf club point of impact and relative club velocity indicator for recording the relative velocity and location at which the head of a golf club impacts a golf ball includes:a. a heat sensitive chemical top coating for providing a permanent black image if heat is applied thereto, said coating including a layer of direct thermal face stock,b. a fibrous paper having first and second sides, the first side being secured with the layer of direct thermal face stock, andc. an adhesive backing secured to the second side of the fibrous paper, the adhesive backing being adapted for removable attachment to the striking face of a golf club. | |
