The brand names which includes Jacuzzi feared they could become generic names because they are so commonly identified with a specific product category.
Generic names refers to the brand name of a product or goods.
Here, Jacuzzi and Crock-Pot are brand name but people assumed the name are the name for the general product in question.
Therefore, the brand of Jacuzzi and Crock-Pot feared that their brand name could become generic names because they are so commonly identified with a specific product category.
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