Shopping carts became such a phenomenon, that the "Saturday Evening Post" featured one on its cover in 1940.
In 1946, Orla Watson from Kansas City invented the telescoping shopping cart that could fit together for easier storage. He tried to patent it, but Goldman objected. They came to an agreement that Watson could have the patent if Goldman could have the license on a few other things. I'm no lawyer, but it sounds like they worked together, which after all is a good thing for two businessmen to do. Because of this one invention the entire layout of stores and check-out lanes had to be redesigned.
In 1947 they added a child's seat, and in 1952 someone invented the plastic flap in the seat that flips up so small items didn't end up on the floor. In 1954 someone decided to add color-coordinated, personalization to the cart handles. And in 1961 wheeled casters made the carts easier to handle. For a time there were even "power lift" carts that made the baskets rise to the level of the counter. It amazes me how people are so creative, constantly thinking of improvements. But it still comes down to the fact that someone has to start the ball rolling. Someone has to have the initial vision.
There have been studies done proving that stores that have carts (like Wal-mart and Home Depot) sell more than stores that do not (Penney's and Sears.) Our propensity is to fill up the space we have. Hey, we do it with our houses, why not shopping carts?//Nancy Moser