H1B stamping done till dec 2017 and I am travelling to US 1st time in August end 2017, Is there Any issue?

H1B stamping done till dec 2017 and I am travelling to US 1st time in August end 2017, Is there Any issue?

Is there any clause for travel wherein you have to travel atleast 6 months before your stamping gets expired?

What are the H1B extension policy?

As far as we know, six month rule relates to passport expiry, not visa.