> "10 years (or whatever) from time the product comes to market or from the time they stop selling it?" Consumer law is typically based on the date of purchase

> "10 years (or whatever) from time the product comes to market or from the time they stop selling it?" Consumer law is typically based on the date of purchase. So, 10 years from the date of purchase, for example. Although, as pointed out by another commenter, UK consumers effectively have these rights already, as they have the right to return (to the retailer) a product that is no longer functioning after a reasonable amount of time for repair, replacement, or refund.