DUOFILM
USPTO (United States) · Serial 73064767
- Status
- registered
- Status updated
- 2 June 2016
- Filing date
- 1 October 1975
- Registration date
- 6 April 1976
- Nice classification
- 5
- Owner
- STIEFEL LABORATORIES, INC.
- Owner country
- US
- Raw status code
- 800
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73064767) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.