RISTON
USPTO (United States) · Serial 72290931
- Status
- cancelled
- Status updated
- 15 October 2021
- Filing date
- 13 February 1968
- Registration date
- 17 September 1968
- Nice classification
- 26
- Owner
- E. I. DU PONT DE NEMOURS AND COMPANY
- Owner country
- US
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 72290931) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.