# EIP 4907 User And Expires Extension

### Intro

EIP by Anders, Lance, and Shrug from EmojiDAO\
This standard proposes an extension to ERC-721 to separate NFT usage rights

### EIP overview

Ownership ERC

Adds another user - address that can use the NFT but can't transfer it or do anything else, the user is just labeled as the user

This can be used for gaming and lending too

### Further reading

* Discussion: <https://ethereum-magicians.org/t/eip4907-erc-721-user-and-expires-extension/8572>
* Full EIP: <https://eips.ethereum.org/EIPS/eip-4907>
* Github implementation: <https://github.com/ethereum/EIPs/blob/master/EIPS/eip-4907.md>
* Implementation in Foundry: <https://github.com/rugpullindex/ERC4907>


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