Hello,
I came to the US in 2007 on H1B visa and worked in US for nearly 18 months.
After this, I returned to my home country India.
Now, I am back in the US with my husband on H4 visa. I am no longer employed with my previous employer who had sponsered H1B during my previous visit. My previous I-797 has expired on April 2009. But, I have the copies of I-797 and other associated documents.

My question is:
If I get a job again in the US, can my new employer apply for H1 transfer using my old I-797 since I haven't completed the 6 year H1B limit? or will I have to go through the H1 application process all over again and wait until october (H1 approvals for current year are valid after october) to start working?

Thanks,
Kruthi