HYDROTARDER
USPTO (United States) · Serial 71438664
- Status
- cancelled
- Status updated
- 15 June 2002
- Filing date
- 9 December 1940
- Registration date
- 3 June 1941
- Nice classification
- 23
- Owner
- Parkersburg Rig and Reel Company, The
- Owner country
- US
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 71438664) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.