Single trigger perfect fifth slide bass trombone
Patent 5375499 Issued on December 27, 1994. Estimated Expiration Date: 
May 18, 2013. 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.
May 18, 2013. 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 468116 2027340 2093993 3631755 3903779 Axial flow valve Method of constructing trumpet or other brass instrument Wind instrument having a compact slide configuration Hornette Patent #: 4993303 InventorAssigneeApplicationNo. 064961 filed on 05/18/1993US Classes:84/395TrombonesExaminersPrimary: Gellner, Michael L.Assistant: Stanzione, Patrick J. Attorney, Agent or FirmForeign Patent References
International ClassG10D 007/10AbstractA slide trombone is provided which has an attachment that is activated by a single thumb trigger to lower the basic pitch of the trombone by a perfect fifth. This attachment configuration permits the player to play all the chromatic tones between the tenor range and the pedal notes using a standard length slide.Other References
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