A sarcasm symbol has been patented in the US.

In the US, a Michigan company has received a patent for a sarcasm symbol—a special form of the traditional smiley face. The new symbol costs $2.

The symbol, called the SarcMark, is a spiral with a dot inside. It looks like the "@" sign.

The patent's authors invite anyone to use the sarcasm symbol in their online correspondence or communication.

To use the SarcMark symbol, you need to install special software, after which the symbol will appear on your keyboard. This software costs $1.99 and is compatible with both Microsoft Windows and Apple Mac OS.