Historical clue formulations

• Gets back in business — 2021-05-18
• Investigates, as a cold case — 2018-07-25
• Goes back into business — 2014-03-09
• Goes back into business — 2005-09-25
• Gets back to business — 2005-08-12
• Gets back in business — 1998-03-07
• Takes down the "Closed" sign — 1995-04-18