Devices for use with stringed musical instruments
Patent 3995523 Issued on December 7, 1976. Estimated Expiration Date: 
December 7, 1993. 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.
December 7, 1993. 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 745557 1785311 2669151 3776088 3903776 InventorApplicationNo. 596445 filed on 07/16/1975US Classes:84/317For chordsExaminersPrimary: Franklin, Lawrence R.Attorney, Agent or FirmForeign Application Priority Data1974-07-18 UKAbstractA device for use in playing a stringed instrument comprises a base plate which is adapted to be fitted above the strings and which carries at least one pair of keys connected by a cross-bar by which both keys can be operated together to engage different strings or either key can be pressed against its own string only. There may also be other, individually operable keys. | |
