OPTIBLOCK
USPTO (United States) · Serial 79238173
- Status
- cancelled
- Status updated
- 19 November 2021
- Filing date
- 22 June 2018
- Registration date
- 12 February 2019
- Nice classification
- 12
- Owner
- KNORR-BREMSE AG
- Owner country
- DE
- Raw status code
- 404
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 79238173) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.