We heard this jingle often on the radio. I think that it lasted into the 80s off and on. Today, Cloverland no longer delivers to your home, and its no longer "The Dairy With Cows" (the Dulaney Valley Road farm has been closed for years--no more Golden Guernsey milk--and the property started growing McMansions since 2000). The Cloverland company lives on, though through dairy products delivered to institutional customers all over the mid-atlantic as well as through the Royal Farm Stores chain of convenience stores.