SHAMROCK
USPTO (United States) · Serial 72016476
- Status
- registered
- Status updated
- 7 September 1998
- Filing date
- 26 September 1956
- Registration date
- 3 December 1957
- Nice classification
- 21
- Owner
- AMPEX CORPORATION
- Owner country
- -
- Raw status code
- 900
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 72016476) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.