« on: 02-17-11 at 08:17 am »
While John's advice is correct, it might be a bit confusing.
Combinations of words are certainly protectable as trademarks, but the words have to function as trademarks to be afforded protection. I understand that the OP gave a hypothetical mark in his post, the hypothetical, at least, may not be capable of trademark protection.
The hypo is "my files" (with and without spaces) for computer software. To the extent the software concerns computer files, the hypothetical mark is likely descriptive (at best). I understand the real mark may not have this problem, but in case the hypothetical is similar, then this issue is relevant.
Also, a more simple point. As a rule of thumb, changing word spacing, using single/plural forms, and adding descriptive words to a pre-existing mark will not usually avoid infringement.