NALCO
USPTO (United States) · Serial 71109752
- Status
- registered
- Status updated
- 21 June 1999
- Filing date
- 23 March 1918
- Registration date
- 17 September 1918
- Nice classification
- 21
- Owner
- DURO}TEST CORPORATION
- Owner country
- -
- Raw status code
- 900
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 71109752) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.