Which WWII military product's brand recognition was so successful that the U.S. government used its name in recruitment materials despite it being a trademark of a private company?

Throughout history, militaries have needed to convince governments and citizens to support production of new weapons and equipment. Some of the most successful military technology has benefited from innovative marketing strategies, brand management, and public engagement campaigns. Test your knowledge of how military technologies became household names and how their creators built support for their adoption.

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Jeep (Willys-Overland Motors)
Thompson Submachine Gun (Auto-Ordnance Corporation)
P-51 Mustang (North American Aviation)
M1 Garand Rifle (Springfield Armory)