I have an unused and expired H1B Petition. My first petition got approved in 2007 and was valid till 2010. I have got H1B Visa stamped in my passport as well but I have never been to US in this time. Another petition got filed and approved in 2011 valid till 2014. I went for VISA stamping but got a query during interview. I havent pursed this further. What is the validity of this petition if i have to file a new petition under CAP exempt if a certain company X wants to file an H1B for me?