HYDROLOK
USPTO (United States) · Serial 72109002
- Status
- cancelled
- Status updated
- 28 December 2002
- Filing date
- 23 November 1960
- Registration date
- 27 March 1962
- Nice classification
- 25
- Owner
- P. L. Porter Co.
- Owner country
- US
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 72109002) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.