Fisher Price Inc. Toys
In 1956, The FP was added, Fisher Price Toys shortened to Fisher Price, and the font was changed as well.
In 1957, the F and P were placed in the red and blue circles and painted the F and P white, and Fisher Price was lengthened to Fisher•Price Toys.
In 1962, The 1957 logo was placed in the price tag.
In 1970, the typeface was changed and Fisher Price Toys was changed to title case. This also appears on all products in the Bright Beats line on the bottom of the boxes (at least in the UK)
In 1984, The F and P were omitted and the circles as well, Fisher Price Toys shortened to Fisher–Price and the holding shape was changed as well. Then the color changed to red.
In 2012, the 1984 logo was altered slightly and an alternate logo was created featuring the F and P from the 1956 to 1984 logos as an alternate logo.