Travel on H4 when H1B with COS is approved

I am in USA right now on H4 visa. I got my H1B with COS approved which will be effective from 1st October 2013. Meanwhile if i want to travel to India can i travel and come back on my H4 visa (H4 visa need to be stamped as my husband will have to get H1 stamped)? I am planning to come back before October 1st 2013.

Can somebody advice me how i may be able to do that?

You can return on H-4 and still be on H-1 from Oct 1 as your H-1 is already approved w/ COS. Although you will receive a new I-94 when you return on H-4, but your current I-94 will go into effect from Oct 1 as it has a later effective date.

Talk to your attorney as well.