ALEXANDRIA, Va., March 26 -- United States Patent no. 12,260,847, issued on March 25, was assigned to Hipshot Products Inc. (Interlaken, N.Y.).

"Quick-release guitar tremolo sustain block, and associated assembly and method" was invented by William Woolery (Waterloo, N.Y.) and Joshua Borisoff (Trumansburg, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of a quick-release sustain block, and associated guitar tremolo assembly and method, are disclosed. The sustain block extends along a main axis from a distal end to a proximal end. The proximal end is affixable to a bridge plate of the tremolo assembly. Linearly straight string retention bores extend through the sustain block in parallel with ...