What this record means
The record shows that the “ELSA” mark is cancelled – it was registered on the Principal Register on September 24 1991 but was cancelled on March 30 1998 because the registrant failed to file a required Section 8 declaration, and the status is listed as “dead.” The owner is Vysoka Skola Chemickotechnologicka v Praze, and the registration covered only “soda ash for industrial purposes, namely, for use in the manufacture of glass, detergents, paper, cellulose, metal, water glass and other chemicals, and in environmental protection for purifying waste gases and the like” in International Class 001. A similar name used for those kinds of industrial chemicals would raise the closest record‑based concern, while uses in unrelated fields fall farther from the scope shown. The record does not give the owner control over every possible use of the word “ELSA.” No supplemental‑register activity appears, and the prosecution history simply tracks the normal filing, publication, registration and the later Section 8 cancellation. The supplied history contains no opposition, cancellation proceeding, or other enforcement signal. I'd treat this as a meaningful concern if you plan to market soda‑ash‑type chemicals under a similar name, but the risk is far lower for unrelated products.
Informational only - not legal advice.Goods & services
soda ash for industrial purposes, namely, for use in the manufacture of glass, detergents, paper, cellulose, metal, water glass and other chemicals, and in environmental protection for purifying waste gases and the like