uL Token (Unlimited Liquidity Token) - This token is distributed to users who provide liquidity to a uPair. It signifies the ability to withdraw that liquidity, as well as a claim on the fees generated by that liquidity. uL token holders can claim those fees at any time in the form of UP tokens, but in order to withdraw liquidity, uL tokens must be sent to uTrade and redeemed.
Note: uL token will only be referred to in a generic sense as it is a classification of token, not a specific token. Liquidity providers will get uSEED, uONT, or uBUSD, as examples, in return for providing liquidity to SEED, ONT, or BUSD uPairs, respectively.