DUOVISC
USPTO (United States) · Serial 74183443
- Status
- registered
- Status updated
- 22 May 2015
- Filing date
- 9 July 1991
- Registration date
- 23 May 1995
- Nice classification
- 5
- Owner
- ALCON MANUFACTURING, LTD.
- Owner country
- US
- Raw status code
- 800
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 74183443) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.