Schweid & Sons The Prime Burger. This fresh USDA Prime® chuck burger packs the most flavor into every bite. U.S. inspected and passed by Department of Agriculture. 75% lean, 25% fat. Est. 1978. The very best burger. Fresh USDA Prime® ground beef chuck burgers. 5.3 oz/patty. Net wt 21.2 oz (1.325 lb) 601g. In the late 1800s, Harry Schweid started selling high quality meats to butchers and restaurants in New York city's lower east side. By the 1930s, his son Sam had his own business in Harlem, selling the best meat around. In 1978, we focused our expertise on one thing: ground beef. Today, that passion is carried on with a single-minded dedication to producing the best tasting, highest quality burger. As Sam always said, if you put only good meat into your burgers, only good things will come out. We hope you agree. 201-939-4747. schweidandsons.com.