What this record means
The record shows that the mark SECUREKEY was abandoned, so it is not a live or registered trademark, and the applicant listed was Rapattoni Corporation, a California corporation. The filing covered class 009 – “Electronic lock box; smart card for use in an electronic lock box; smart card reader; internet‑based service of maintaining data relating to electronic lock boxes; system of electronic lock boxes, smart cards, smart card reader, and internet‑based system of maintaining data relating to the lock boxes and smart cards.” A similar name used for anything in that electronic‑security hardware or data‑service space would be the closest area of concern, while uses outside those goods or services fall farther from the scope shown. The prosecution history notes a non‑final action in March 2004 and an abandonment notice on Oct 27 2004, which is the latest status event. No oppositions, cancellations or court actions appear in the supplied history. I'd treat this as a modest concern if you plan a name that targets electronic lock‑box or smart‑card products, but the abandonment means the USPTO record does not currently block other uses.
Informational only - not legal advice.