PORTADAMP
USPTO (United States) · Serial 73200203
- Status
- cancelled
- Status updated
- 20 May 1987
- Filing date
- 11 January 1979
- Registration date
- 20 January 1981
- Nice classification
- 6
- Owner
- E-A-R Corporation
- Owner country
- US
- Raw status code
- 710
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 73200203) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.