H1B extension DP

耗时半年

December 28, 2020 Case Was Approved
December 28, 2020 We approved your Form I-129, Petition for a Nonimmigrant Worker, and emailed you an approval notice.
December 15, 2020 We received your Form I-129, Petition for a Nonimmigrant Worker, and mailed you a receipt notice.
December 15, 2020 We received your request for premium-processing of your Form I-129, Petition for a Nonimmigrant Worker, and mailed you a receipt notice.
October 26, 2020 We sent a request for additional evidence for your Form I-129, Petition for a Nonimmigrant Worker.
June 10, 2020 We received your Form I-129, Petition for a Nonimmigrant Worker.

请问楼主，您之前的H1b是在什么时间到期，您又是什么时间开始办的extension呢？LCA用了多久？想取取经，谢谢！