Coaches field analysis kit
Patent 4047308 Issued on September 13, 1977. Estimated Expiration Date: 
September 13, 1994. 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.
September 13, 1994. 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 2158368 2158475 2643466 3340621 InventorApplicationNo. 05/664005 filed on 03/04/1976US Classes:434/251Football, soccer, or rugbyExaminersPrimary: Skogquist, Harland S.Attorney, Agent or FirmAbstractA kit for use by a coach or coaches on a regulation football playing field during formation and play analysis and for teaching players formations and plays has a plurality of elements forming sets symbolizing an offensive unit, a defensive unit, and route patterns. The elements are placeable directly on a regulation playing field to assist in setting up offensive and defensive formations and sets. | |
