KORKAP
USPTO (United States) · Serial 72286233
- Status
- registered
- Status updated
- 4 November 1992
- Filing date
- 5 December 1967
- Registration date
- 12 May 1970
- Nice classification
- 21
- Owner
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Owner country
- US
- Raw status code
- 900
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 72286233) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.