PRT
USPTO (United States) · Serial 72406357
- Status
- registered
- Status updated
- 22 November 1993
- Filing date
- 29 October 1971
- Registration date
- 13 February 1973
- Nice classification
- 38
- Owner
- MCGRAW-HILL, INC.
- Owner country
- US
- Raw status code
- 900
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 72406357) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.