IQ has nothing to do with the basic legal reality that failing to defend a trademark, logo, or name results in the undefended item falling into standard use and losing any legal protection. Witness aspirin, Xerox, etc.
>>Witness aspirin, Xerox, etc.<<
I think Xerox actually hung on to their TM... http://en.wikipedia.org/wiki/Generic_trademark
I remember in the 70s and 80s when Xerox would show up in courtrooms and file briefs when they saw the use of “Xerox” in place of “photostatic copy.”
But it was expensive and a lot of work for them.