SIGMA
USPTO (United States) · Serial 72197350
- Status
- registered
- Status updated
- 21 March 1986
- Filing date
- 7 July 1964
- Registration date
- 21 December 1965
- Nice classification
- 2
- Owner
- UNION CARBIDE CORPORATION
- Owner country
- -
- Raw status code
- 900
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 72197350) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.