POLYBUFFER
USPTO (United States) · Serial 73305071
- Status
- cancelled
- Status updated
- 18 March 2016
- Filing date
- 9 April 1981
- Registration date
- 22 February 1983
- Nice classification
- 1
- Owner
- AMERSHAM BIOSCIENCES AB
- Owner country
- SE
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73305071) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.