Tokens not transferable after 369 days?
**At the start of the sale, 20% of the total minted tokens (200,000,000 EOS)** 
**will become available during a 5 day window.**

**The remaining 800,000,000 EOS will then be split evenly into 360**
**one-day windows of 2,222,222.222222 EOS tokens each.**
**369 days after the creation of this contract the EOS ERC-20 token**
**will be frozen and non transferrable.**

To participate in the EOS token sale, simply send ETH to the contract address during a window of your choice.

The EOS tokens will be reserved for you to claim when the window completes. To claim the tokens, visit the Ethereum Foundation Wallet using an Ethereum-enabled browser (e.g. Metamask, Mist, Parity) or the MyEtherWallet Contract Viewer and load in your keyfile. If the user has never used Ethereum before, the Metamask Extension in the Google Chrome browser is the recommended Ethereum wallet.
[source](https://github.com/eosio/eos-token-sale)