The original and the copy of the articles of amendment shall be delivered to the secretary of state. If the secretary of state finds that the articles of amendment conform to law, when all fees have been paid as prescribed in chapter 47-28, he shall:
(1) Endorse the word "filed" on the original and the copy and the month, day, and year of filing;
(2) File the original in his office; and
(3) Issue a certificate of amendment to which he shall affix the copy.
The certificate of amendment, together with the copy of the articles of amendment affixed thereto, shall be returned to the corporation or its representative.