PROTON-SPONGE
USPTO (United States) · Serial 77206281
- Status
- registered
- Status updated
- 12 March 2018
- Filing date
- 14 June 2007
- Registration date
- 8 April 2008
- Nice classification
- 1
- Owner
- Sigma-Aldrich Biotechnology L.P.
- Owner country
- US
- Raw status code
- 800
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 77206281) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.