LLC to Partnership or Corp/S Corp

I am a member of a multi-member LLC which registered in New Jersey on November 18, 2009. What is the last date in which we can elect to be taxed as a Corporation or S Corporation? If we do not make the election for 2009, then the company will be taxed as a partnership. Can the company make the election for a future year to be taxed as a corporation? If so, within what time period does this election have to be made?