slide 2 of 6. When most people ask 'how long does a patent last', they are inquiring about utility patents. A utility patent is the patent granted for new machines, processes, products, and scientific formulas such as medicines or new elemental compounds.
The Stick. The largest part of the violin bow is the stick,with the best ones made of Pernambuco wood from Northeast Brazil, although carbon fiber is another quality choice.he Hair. The hair is the part of the violin bow that touches the strings and produces sound. Horse-hair is the traditional favorite, but synthetic hairs are also used for cheaper bows.
When it comes to the wood used to make a violin, the fingerboard is in a category of its own. Premium violins built before approximately 1900 were usually fitted with a fingerboard of solid ebony, whilst other hardwoods such as beech were seen as less-valuable alternatives.