POLYBRINE
USPTO (United States) · Serial 72393048
- Status
- registered
- Status updated
- 12 April 2003
- Filing date
- 25 May 1971
- Registration date
- 11 July 1972
- Nice classification
- 6
- Owner
- M-I DRILLING FLUIDS COMPANY
- Owner country
- US
- Raw status code
- 900
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 72393048) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.