ELECTRO-FILTER
USPTO (United States) · Serial 73206266
- Status
- abandoned
- Status updated
- 8 December 1981
- Filing date
- 5 March 1979
- Registration date
- -
- Nice classification
- 9
- Owner
- Petrolite Corporation
- Owner country
- US
- Raw status code
- 618
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73206266) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.