Except as otherwise expressly provided in this Chapter, all of the provisions of this Chapter shall be applicable to every foreign corporation on or before January 1, 1969 authorized to transact business in this state; provided that this Chapter shall not affect or impair any right of any such foreign corporation which is guaranteed or protected by the Constitution of this state or of the United States; and provided further that this Chapter shall not be construed to impair or affect any act done, offense committed or right accruing, accrued or acquired, or liability, penalty, forfeiture or punishment incurred, prior to January 1, 1969, but the same may be enjoyed, asserted and enforced, prosecuted or inflicted as fully, and to the same extent, as if this Chapter had not been enacted.  

Acts 1968, No. 105, §1.