| Date | Description | Journal |
|---|---|---|
| May 24, 2011 | Indefinitely postponed | 1768 |
| May 24, 2011 | Heidemann MO55 prevailed | 1768 |
| May 24, 2011 | Heidemann MO55 Indefinitely postpone filed | 1768 |
| May 23, 2011 | Placed on Select File | 1744 |
| May 23, 2011 | Advanced to Enrollment and Review Initial | 1737 |
| May 20, 2011 | Placed on General File | 1717 |
| May 20, 2011 | Date of introduction | 1717 |