BYKOPHYLLIN
USPTO (United States) · Serial 73699054
- Status
- cancelled
- Status updated
- 21 October 1996
- Filing date
- 4 December 1987
- Registration date
- 17 April 1990
- Nice classification
- 5
- Owner
- BYK GULDEN LOMBERG CHEMISCHE FABRIK GMBH
- Owner country
- DE
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73699054) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.