SLUDGE BLENDER
USPTO (United States) · Serial 73776294
- Status
- abandoned
- Status updated
- 28 September 1991
- Filing date
- 23 January 1989
- Registration date
- -
- Nice classification
- 7
- Owner
- KOCH ENGINEERING COMPANY, INC.
- Owner country
- US
- Raw status code
- 602
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73776294) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.