Interactive typing/training system
Patent 4909739 Issued on March 20, 1990. Estimated Expiration Date: 
November 2, 2008. 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.
November 2, 2008. 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 2570908 3501849 InventorsApplicationNo. 266368 filed on 11/02/1988US Classes:434/233Means on hand or finger for indicating finger to be usedExaminersPrimary: Grieb, William H.Attorney, Agent or FirmInternational ClassG09B 013/00AbstractA keyboard instruction system (10) is disclosed which uses a left hand finger guide (12) and a right hand finger guide (14). The finger guides have a color coding for each finger on the hands and the character representing the home key that each finger is to be used for in touch typing. Overlays, bearing large, highly visible key symbols are placed on the keys of the keyboard in colors corresponding to the color coding of the finger guides so that it is clear which keys each finger should be used for.Other References
Field of SearchMeans on hand or finger for indicating finger to be used | |
