I travelled to USA with H4 visa. it is valid till December 2015. after that I got h1 visa approval. I received h1 COS. it is valid till may 2015. But, I don’t have stamping for h1, I have stamping for H4. last month, I travelled to India. if I want to travel USA, can I travel with h4 visa ? Or should I need to change the change of status? because, my status in h1.Please guide me.