SIGMA DELTA TAU
USPTO (United States) · Serial 73018512
- Status
- registered
- Status updated
- 10 October 2014
- Filing date
- 11 April 1974
- Registration date
- 16 September 1975
- Nice classification
- -
- Owner
- SIGMA DELTA TAU
- Owner country
- US
- Raw status code
- 800
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73018512) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.