| Event Date | Event Description |
| Monday, July 17, 1989 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Thursday, November 3, 1988 | ASSIGNED TO EXAMINER |
| Monday, December 19, 1988 | ASSIGNED TO EXAMINER |
| Wednesday, January 4, 1989 | NON-FINAL ACTION MAILED |
| Monday, December 8, 1997 | ASSIGNED TO EXAMINER |
| Monday, August 14, 1989 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Monday, November 20, 1989 | NON-FINAL ACTION MAILED |
| Wednesday, May 23, 1990 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Wednesday, August 15, 1990 | NON-FINAL ACTION MAILED |
| Friday, March 15, 1991 | CORRESPONDENCE RECEIVED IN LAW OFFICE |
| Wednesday, September 4, 1991 | LETTER OF SUSPENSION MAILED |
| Wednesday, August 9, 1995 | ASSIGNED TO EXAMINER |
| Tuesday, September 17, 1996 | ASSIGNED TO EXAMINER |
| Tuesday, March 11, 1997 | ASSIGNED TO EXAMINER |
| Thursday, August 14, 2025 | AMENDMENT CORRESPONDENCE ENTERED |
| Tuesday, March 19, 2002 | ABANDONMENT - FAILURE TO RESPOND OR LATE RESPONSE |
| Tuesday, September 29, 1998 | ASSIGNED TO EXAMINER |
| Friday, April 21, 2000 | ASSIGNED TO EXAMINER |
| Thursday, March 1, 2001 | ASSIGNED TO EXAMINER |
| Friday, March 9, 2001 | NON-FINAL ACTION MAILED |
| Tuesday, March 19, 2002 | ASSIGNED TO EXAMINER |