What this record means
The record shows that ROT GUT is an abandoned application, filed by DuClaw Brewery, LLC, a Maryland limited‑liability company, and it is no longer live on either the Principal or Supplemental Register. The only goods listed are “BEER, ALE, PORTER” in International Class 032, so the closest area of concern would be any other brewery or beverage brand that wants to use ROT GUT for similar light‑beverage products. The record does not give DuClaw Brewery control over every possible use of the words “rot” or “gut” in unrelated markets, and it does not extend to non‑beverage goods or services. The prosecution history shows the application proceeded to a Notice of Allowance on August 30 2005, but no Statement of Use was filed, and an abandonment notice was mailed on October 31 2006, which is the latest meaningful status event. No oppositions, cancellations or court actions appear in the supplied history. I'd treat this as a moderate concern if you plan a beer‑related brand with the same name, because the abandoned filing still signals that the USPTO once linked ROT GUT to beer.
Informational only - not legal advice.