What this record means
The record shows that the mark SEA (Serial 73232532) was cancelled and is no longer live; the cancellation was entered on Dec 23 1988 because the registrant, Societe de Transformation du Caoutchouc ‑ Sotrac, did not file an acceptable Section 8 declaration, and the record lists the status as “Dead · Cancelled.” The registration covered only class 028 goods – specifically balls for playing soccer, basketball, handball, volleyball, rugby and water polo, plus medicine balls, weighted balls, hurdles, hoops, discuses and stakes for marking athletic courses – so a later use of the word SEA in connection with those types of sports equipment would raise the closest record‑based concern. The record does not give the owner control over every possible use of the word SEA in other industries or contexts. Because the mark was on the Principal Register and was never moved to the Supplemental Register, there is no examination sequence to explain. The latest meaningful event is the Section 8 cancellation in 1988, and the supplied history shows no oppositions, cancellations by others, or court actions, so no enforcement signals appear. I'd treat this as a meaningful concern if you plan to use SEA for similar sports‑equipment products, but the risk is far lower for unrelated goods.
Informational only - not legal advice.