DUPLEX
USPTO (United States) · Serial 71024452
- Status
- registered
- Status updated
- 20 December 1988
- Filing date
- 4 January 1907
- Registration date
- 26 March 1907
- Nice classification
- 37
- Owner
- KEUFFEL & ESSER COMPANY, THE
- Owner country
- US
- Raw status code
- 900
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 71024452) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.