A state savings bank, stock or mutual, organized and operated under this chapter, may convert to a federal charter in accordance with the laws and regulations of the United States and with the same force and effect as though originally incorporated under those laws. The procedure to effect this conversion is:

1. (1) Following the favorable majority vote of the board of directors of the state savings bank, a meeting of the members or stockholders must be held upon not less than fifteen days' notice to each member or stockholder. Notice of the meeting may be mailed to each member or stockholder, postage prepaid, to the last known address, or the board of directors may cause notice of the meeting to be published, once a week for two weeks preceding the meeting, in a newspaper of general circulation in the county where the state savings bank has its principal office. It is sufficient notice of the purpose of the meeting if the notice contains substantially the following statement: "The purpose of this meeting is to consider the conversion of this state chartered savings bank to a federal charter, under the laws of the United States". An appropriate officer of the state savings bank shall make proof by affidavit at the meeting of due service of the notice or call for the meeting.
2. (2) At the meeting of the members or stockholders of the state savings bank, the members or stockholders, by affirmative vote of a majority of votes or shares present, in person or by proxy, may resolve to convert the state savings bank to a federal charter. A copy of the minutes of the meeting of the members or stockholders, as certified by an appropriate officer of the state savings bank, must be filed in the office of the board within ten days after the date of the meeting. The filed certified copy is prima facie evidence of the holding and the action of the meeting.