DIAPENE
USPTO (United States) · Serial 71422908
- Status
- cancelled
- Status updated
- 17 February 2001
- Filing date
- 23 August 1939
- Registration date
- 30 January 1940
- Nice classification
- 6
- Owner
- QUAKER CHEMICAL PRODUCTS CORP.
- Owner country
- US
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 71422908) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.