What this record means
The record shows the mark DIMOND RHODESIAN RIDGEBACKS was cancelled, so it is not a live registration; the last owner listed is Sandra J. Gordon, an individual, and the cancellation was entered on Dec 1 2007 after the registrant failed to file an acceptable Section 8 declaration. The registration covered only “RHODESIAN RIDGEBACK DOGS” in International Class 031, so a name that’s used for dogs, breeding, training or related pet‑service goods would be the closest area of concern. The record does not give the owner any control over other uses of the words “DIMOND,” “RHODESIAN” or “RIDGEBACKS” in unrelated fields. Because the mark was on the Principal Register, there is no supplemental‑register sequence to explain. The latest meaningful event is the Section 8 cancellation in 2007, and the supplied history shows no oppositions, cancellations by others, or court actions. I'd treat this as a moderate concern if you plan to use a similar name for dogs, but the risk is far lower for unrelated products.
Informational only - not legal advice.