DUO-CHEK
USPTO (United States) · Serial 74658209
- Status
- registered
- Status updated
- 8 August 2017
- Filing date
- 10 April 1995
- Registration date
- 26 November 1996
- Nice classification
- 6
- Owner
- Yale Security Inc.
- Owner country
- US
- Raw status code
- 800
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 74658209) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.