A corporation heretofore created in this state by special act or under general law for purposes for which a corporation may be created under this article and other applicable provisions of this chapter, may, by the procedure herein provided, amend its charter or certificate of incorporation to conform to the provisions of this article with the same corporate name and for the same corporate purposes and any additional purposes permitted by this article; but such amendment shall not affect then existing property rights or liabilities.
New York Legal Code