ECT ENCOTECH ENERGY CONVERSION TECHNOLOGY
USPTO (United States) · Serial 73116541
- Status
- cancelled
- Status updated
- 29 June 2002
- Filing date
- 28 March 1977
- Registration date
- 23 June 1981
- Nice classification
- 42
- Owner
- Coplen, Jr.; Herman L.
- Owner country
- US
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73116541) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.