In 2004 Sterion , a medical devices company later renamed Sten Corporation , purchased Burger Time from Geeslin .
Doug Geeslin , a Fargo - based investor , purchased the company from its founder .
In 2004 Sterion , a medical devices company later renamed Sten Corporation , purchased Burger Time from investor .
Doug Geeslin , a Fargo - based investor , purchased the company from its founder .