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Cheeseburger Invented in Denver, Louis Ballast 1935 Trademark Verified

“3. What American food staple was allegedly invented in Denver, with a trademark obtained in 1935 by Louis Ballast, owner of the Humpty Dumpty Drive-In? a. The Cheeseburger”
Correct
Confidence: High Checked on July 13, 2026

Summary

The cheeseburger is the American food staple alleged to have been invented in Denver, with Louis Ballast obtaining a trademark for it in 1935 while running the Humpty Dumpty Drive‑In. Historical markers and numerous reports corroborate this claim.

Recheck this fact Runs a fresh check with up-to-date sources

Sources 58 searched

gov1.com
  • Is Denver, Louisville or Pasadena Home of the Cheeseburger?

    Louis Ballast of Denver, Colo., was awarded the “cheeseburger” trademark in 1935. Downtown Denver has a stone marker at the site of the Humpty Dumpty Barrel, Colorado’s first drive-in, that claims Ballast created the beef-and-cheese sensation ...

hmdb.org
  • Creation of the Cheeseburger Historical Marker

    His restaurant, the Humpty Dumpty Barrel Drive-In, was Colorado's first drive-in and was commonly known as The Barrel. , The cheeseburger trademark was registered by Mr. Ballast on March 5, 1935. , Dedicated March 5, 1987. . This historical marker was erected in 1987.

carnegiemnh.org
  • The 12,000-Year Journey Of The Cheeseburger

    His father owned a sandwich shop, ... He called it a “cheese hamburger.” One decade later, a Kaelin’s restaurant in Louisville, Kentucky gave the sandwich the name “cheeseburger,” which was trademarked in 1935 by Louis Ballast of Humpty Dumpty Drive-In....

helenjournal.org
roadsideamerica.com
  • Birthplace of the Cheeseburger, Denver, Colorado

    It's owner, Louis E. Ballast, supposedly created the cheeseburger on this site. To legally bolster the claim, the monument notes that, "The Cheeseburger trademark was registered by Mr. Ballast on March 5, 1935."

southfloridareporter.com
tumblr.com
visitdenver.com
  • Only in Denver: Birthplace (Maybe) of the Cheeseburger

    As the story goes, Humpty Dumpty proprietor Louis Ballast acquired a trademark for “The Cheeseburger” in 1935. Ballast had first experimented with burgers topped with chocolate and peanut butter, but taste testers preferred cheese.

kdvr.com

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