DYNAMIC SIGNAL TRANSFER
USPTO (United States) · Serial 74227670
- Status
- abandoned
- Status updated
- 17 August 1993
- Filing date
- 3 December 1991
- Registration date
- -
- Nice classification
- 9
- Owner
- TELLABS OPERATIONS, INC.
- Owner country
- US
- Raw status code
- 601
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 74227670) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.