THE PORTABLE BACK SCHOOL
USPTO (United States) · Serial 73343553
- Status
- cancelled
- Status updated
- 11 August 1989
- Filing date
- 28 December 1981
- Registration date
- 22 March 1983
- Nice classification
- 9, 16
- Owner
- C. V. Mosby 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 73343553) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.