Wed, 09/20/2023 - 16:33 Tech Insider Tupperware was a mainstay of kitchens in the US. Now, the company is on the verge of going out of business.Science & Society Picture Library/SSPL/Getty Images Tags Retail, Markets, Features, Tupperware, Kitchenware, Retail, rise-and-fall, Shopping, multilevel-marketing Source Tupperware's rise and fall: Once an American kitchen icon, the struggling compa…