Portaloo, it's a trademark that's been registered for more than 50 years
The Intellectual Property Office of Ireland holds a database of all registered trademarks and it can be accessed online to check on a trademark's validity. Portaloo is a fully protected trademark and Portakabin has been supplying high-quality products under the name Portaloo for more than 50 years. Those premium products include self-contained toilet blocks and showers of the highest quality as well as specialist units for people with disabilities and multi-cultural facilities. The products have been available for hire and sales.
Recognising the value of the name Portaloo, Portakabin registered it on 15/02/1966. From then on only toilets, showers and washrooms manufactured by Portakabin have been able to legally use the name on them or in their promotion.