I have applied for H1-B on Nov - 2009 through employer A and it got approved on Mar - 2010 . But I did not go for stamping and I don’t have any approval notice with me . I have only receipt number . I am not sure whether it is revoked or not . I came to US on LB Visa on Jan 2011 though employer B and my L1-B valid until Oct - 2013 .
1 ) If I want to apply for H1-B , do I need to apply fresh 1 through 2013 cap quota ? ( or ) my old H1-B petition number can be used for COS?
2 ) Do I need to contact employer A to proceed further ?
3 ) If my H1-B can be done by using old petition number , what will be the validity of new H1-B ?