PROTOMYCIN
USPTO (United States) · Serial 72020331
- Status
- registered
- Status updated
- 12 October 1998
- Filing date
- 3 December 1956
- Registration date
- 7 January 1958
- Nice classification
- 18
- Owner
- UPJOHN COMPANY, THE
- Owner country
- US
- Raw status code
- 900
As filed by US
Authoritative source
The official US trademark record is at USPTO TSDR (serial 72020331) ↗. Where our data differs from the USPTO record, theirs is correct.
See methodology for refresh cadence + status normalisation. See sources for licensing.