| Event Date | Event Description |
| Thursday, November 14, 1991 | ABANDONMENT - AFTER INTER PARTES DECISION |
| Thursday, November 14, 1991 | OPPOSITION TERMINATED NO. 999999 |
| Tuesday, August 20, 1991 | OPPOSITION SUSTAINED NO. 999999 |
| Thursday, August 8, 1991 | OPPOSITION TERMINATED NO. 999999 |
| Monday, June 10, 1991 | OPPOSITION SUSTAINED NO. 999999 |
| Monday, March 11, 1991 | OPPOSITION INSTITUTED NO. 999999 |
| Thursday, January 3, 1991 | OPPOSITION INSTITUTED NO. 999999 |
| Tuesday, October 2, 1990 | PUBLISHED FOR OPPOSITION |
| Saturday, September 1, 1990 | NOTICE OF PUBLICATION |
| Tuesday, July 31, 1990 | APPROVED FOR PUB - PRINCIPAL REGISTER |
| Tuesday, June 19, 1990 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Thursday, July 5, 1990 | FINAL REFUSAL MAILED |
| Tuesday, June 19, 1990 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Friday, June 8, 1990 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Thursday, May 31, 1990 | LETTER OF SUSPENSION MAILED |
| Thursday, May 17, 1990 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Monday, May 14, 1990 | LETTER OF SUSPENSION MAILED |
| Monday, May 14, 1990 | ASSIGNED TO EXAMINER |
| Thursday, April 12, 1990 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Monday, April 9, 1990 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Monday, April 2, 1990 | UNRESPONSIVE/DUPLICATE PAPER RECEIVED |
| Monday, October 2, 1989 | NON-FINAL ACTION MAILED |
| Thursday, September 21, 1989 | ASSIGNED TO EXAMINER |
| Wednesday, August 30, 1989 | ASSIGNED TO EXAMINER |