You can always continue to prosecute your application with a different attorney. You should search the U.S. Patent Office (USPTO) web site for your attorney current contact information before deciding to contact a different attorney. However, if it's been five (5) years since your last action, your application may be abandoned even if it was issued. Your new attorney will have to deal with it. Good luck.
Answered on May 20th, 2018 at 11:23 AM