COLUMNS ON THE ARTS AND SCIENCES OF CHROMATOGRAPHY
USPTO (United States) · Serial 73047696
- Status
- cancelled
- Status updated
- 16 August 1983
- Filing date
- 25 March 1975
- Registration date
- 22 March 1977
- Nice classification
- 16
- Owner
- WHATMAN INC.
- Owner country
- US
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73047696) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.