I believe they mature after 24 hours, not necessarily 1440 blocks , how long has it been?
It has been around 35 hours at this point, but coin maturity is usually a function of block numbers. Either way though, it is well past both the 24 hour mark and 1440 blocks.
The block where the transaction occurred is block
10359 which was at 2014-10-10 23:20:36. The latest block is now
12152 at 2014-10-12 10:27:21.