Is there any minimum period of stay in US to extend H1B Visa?

Hi,

My H1B visa is valid till 20th Feb 2013. And I will be travelling to US in 1st week of September 2012.

Please let me know if I can extend my H1B Visa and my dependants Visa(H4) after going to US. I have 5 months of time for extension. Will there be any minimum period of stay in US for the extension?

I don’t think there is any minimum period of stay for H1B extension filing.

H1B extension petitions usually takes 2-6 months for processing and if you want faster processing you could opt for Premium Processing and thus get the adjudication done in 15 calendar days.