1938-1964[]
1964-1977[]
1976-1977[]
For a half a year starting in mid-1976, the oval was removed from the 1964 logo.
1977-present[]
First used March 25, 1977. Since the 1990s, the “4-D” symbol has been used increasingly less, but can still be seen on delivery vehicles as well as few examples of packaging.
1977-2005[]
Brown version, used from 1983 until the early 1990s.
2005-present[]
Slogan
First used August 19, 2005. This version is slightly different only due to the crude vector work.