What this record means
The record shows the mark SANITEK is cancelled – the registration was voided on Nov 24, 2017 because the owner, UV Doctor Management LLC, failed to file a required Section 8 declaration, and the USPTO marked the filing as “Cancelled SEC. 8 (6‑YR).” The only goods listed are “ultraviolet water purification units and systems, consisting of reactors, lamps, and power/control cabinets, used for disinfecting and sanitizing liquids, air and surfaces,” so a later use of SANITEK in that same niche would raise the closest record‑based concern. The record does not give the owner control over every possible use of the word SANITEK in unrelated fields. No supplemental‑register activity appears, and the prosecution history contains no oppositions, cancellations by third parties, or other enforcement actions. I'd treat this as a meaningful concern if you plan a similar name for UV‑based purification equipment, but the risk is far lower for unrelated products.
Informational only - not legal advice.Goods & services
Ultraviolet water purification units and systems, consisting of reactors, lamps, and power/control cabinets, used for disinfecting and sanitizing liquids, air and surfaces
First use: Oct 26, 2009
Use in commerce: Oct 26, 2009