SIGMA DIAGNOSTICS
USPTO (United States) · Serial 73458463
- Status
- cancelled
- Status updated
- 15 October 2005
- Filing date
- 27 December 1983
- Registration date
- 8 January 1985
- Nice classification
- 1
- Owner
- Sigma Chemical Company
- Owner country
- US
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73458463) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.