H1b expring and need to travel 1st time to US

[viky_ddn]

Hi experts,

I have valid visa from 07 Oct 2012 to 06 Oct 2013 , Now my company is sending me onsite assignment on this Visa on July 1st.
My question when i will be travelling i will have validity left for not more than 4 months, so will it create problem , as we are plaining once i will reach US i will file for extension.

Can you please guide if this can create a problem while entrying US.

Regards,
Viky