What this record means
The record shows that the “SEA” mark filed by Duncan McIntosh Company, Inc. is no longer live – it was abandoned on Oct 16 2018 after the applicant failed to respond to an Office action, and the USPTO lists it as a dead Principal Register application. The only goods listed are “Magazine paper” in International Class 016, so a later user of “SEA” for paper‑related products would encounter the closest record‑based concern, while uses in unrelated categories fall farther from the scope shown here. The record does not give the owner control over every possible use of the word “SEA.” No Supplemental Register filing appears, and the prosecution history simply reflects the abandonment rather than a shift to another register. The latest meaningful event is the abandonment notice mailed on Oct 16 2018, and the supplied history shows no opposition, cancellation or other enforcement activity. I'd treat this as a modest concern if you plan a similar name in the paper‑goods space.
Informational only - not legal advice.