"Trademark Creep"...
GOOD Magazine has an intriguing article on the subject of "trademark creep": It's every entrepreneur's dream for his or her trademark to become a household word. But what happens when that intellectual property becomes dissociated from its brand? Case in point: Thermos, zipper, escalator, popsicle...photoshop, google, twitter.
The original article can be found at: Generification: When "Google" Becomes "google" - Wordtastic - GOOD