Respondemos todas aquellas dudas referentes a los diferentes procesos implicados en la propiedad industrial.
The sign you want to register must be lawful and able to carry out the relevant identifying and differentiating functions of a trademark, which means that it must not incur any of the strictly prohibited aspects established by law. It should also be available, meaning that it does not conflict with any previous rights, either of a trademark or any other personality right such as the right to a name or own image or any other intellectual property right, etc.
The following signs or media can constitute a trademark:
The law establishes a series of limitations:
The SPTO has a Guide to Registration Prohibitions on its web page where you will find examples and specific cases of the criteria used by the Office to analyse absolute and relative prohibitions of distinctive signs.