BIOWALL
USPTO (United States) · Serial 73347733
- Status
- cancelled
- Status updated
- 11 October 1989
- Filing date
- 29 January 1982
- Registration date
- 24 May 1983
- Nice classification
- 19, 42
- Owner
- Dyckerhoff & Widmann Aktiengesellschaft
- Owner country
- DE
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73347733) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.