CHEMKLOS
USPTO (United States) · Serial 72006451
- Status
- registered
- Status updated
- 22 December 1997
- Filing date
- 16 April 1956
- Registration date
- 19 March 1957
- Nice classification
- 39
- Owner
- MINE SAFETY APPLIANCES COMPANY
- Owner country
- US
- Raw status code
- 900
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 72006451) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.