A close personal friend brought generic trademarks to my attention. Wikipedia defines generic trademarks as a trademark or brand name that has become the generic name for a general class of product or service. This is usually against the intentions of the trade mark holder so essentially the trademark becomes non-existent. A court can determine these trademarks to have become generic.
I find it fascinating to know that one day someone can create a product or service to grow so huge that the mark can no longer be effective due to the general population using the brand name interchangeably with the generic name. The thing that began making the trademark holder money initially can possibly stop.
Here is just a few brands that have now become generic and are no longer trade marked:
Generic: moving stairs
Generic: coin laundry shop
Generic: spinning toy
Band-Aid is another trade mark example genericised in the US, Canada, New Zealand, and Australia for adhesive bandage however it is still legally trade marked. Others include Crockpot, Chapstick, Bubblewrap, Onesies, Post-it, Scotch tape, Taser and Xerox.
See the full list on Wikipedia.
Amazing! Do you know of any others?