What's an example of a good invention that never gained traction and disappeared?

 

What's an example of a good invention that never gained traction and disappeared?

————- Wireless Electricity —————

Nikola Tesla, the Serbian-American inventor, spent a great deal of time developing a way to transmit electrical power without wires back in the 1890s.

In fact, with his famous Tesla coil, he achieved this – and used his invention to light three incandescent lamps from about 30 metres. But 30 metres is not far enough, and Tesla never managed to transfer electricity over more than relatively short distances.

Imagine your phone getting charged in your pocket as you walk around the house or your electric car getting charged while you drive.

(wireless charging doesn’t count as the wireless charger is still plugged into a socket, and your phone has to be in contact with the charging plate)