User: Jaidan

Re:Does this "challenge" have any legal significan

On: Microsoft, Sue Me First

Or...you missed it entirely. http://inventors.about.com/library/inventors/blesc alator.htm Escalator was originally a trademark that expired to become part of the public lexicon.

The word escalator lost its proprietary status and its capital "e" in 1950 when the U.S. Patent Office ruled that the word "escalator" had become just a common descriptive term for moving stairways."