HYDRO-CONTIN
USPTO (United States) · Serial 74437526
- Status
- abandoned
- Status updated
- 25 November 1995
- Filing date
- 20 September 1993
- Registration date
- -
- Nice classification
- 5
- Owner
- PURDUE FREDERICK COMPANY, THE
- Owner country
- US
- Raw status code
- 606
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 74437526) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.