What this record means
The record shows that the mark SEA was registered on the Principal Register to Y Associates, Inc., a New York corporation, for restaurant services (class 043) and that the registration was cancelled on Jan 31 2013 because the owner failed to file a required Section 8 declaration, so the mark is now dead. The goods listed are limited to “restaurant services,” so a later use of the word SEA in a similar hospitality context would be the closest area of concern, while uses in unrelated fields such as apparel or technology fall farther from the scope shown in the record. The record does not give the owner control over every possible use of the word SEA in any industry. The prosecution history shows the mark moved through normal examination, was approved for publication, and ultimately registered, but there is no indication of any opposition, cancellation proceeding, or other enforcement action in the file. I'd treat this as a meaningful concern if you plan a restaurant‑related brand using the same name.
Informational only - not legal advice.