Regarding travelling with 4 months valid H1B visa

USA H1B Visa
1

Here is the scenario in my case:

  1. Valid petition ending 19 Sep 2016
  2. Got the H1B visa stamped in Aug 2015 and visa is valid till 19 Sep 2016.
  3. Never traveled on this visa yet. I am planning to travel by 05 May 2016.

My question are:

  1. Would there by any issue in my case at the port of entry?
  2. What is the minimum validity required for traveling on H1B visa, especially when I have never traveled on that visa?
  3. When should my employer apply for the extension?
2

  1. No

  2. nothing like that as long as you have valid reasons

  3. in general 3 mnths before expiry

3

Extension can be applied even in the last month. As long as you have validity, there will not be any problem.