MAINTENANCE MASTER
USPTO (United States) · Serial 73500212
- Status
- cancelled
- Status updated
- 13 December 1991
- Filing date
- 20 September 1984
- Registration date
- 25 June 1985
- Nice classification
- 9
- Owner
- PENTON SOFTWARE INC.
- Owner country
- US
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73500212) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.