AMPLIFICATIONS
USPTO (United States) · Serial 74044522
- Status
- cancelled
- Status updated
- 14 October 2001
- Filing date
- 2 April 1990
- Registration date
- 2 October 1990
- Nice classification
- 16
- Owner
- Perkin-Elmer Corporation, The
- Owner country
- US
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 74044522) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.