Nylon: Timeline

1935   Nylon is discovered by Wallace Carothers

1937   Wallace H. Carothers receives a patent Patent

A patent is a set of exclusive right [i]s granted by a state [i] to a patentee for a fixed period of time [i] ... 

 for nylon.

1938   A nylon bristle toothbrush becomes the first commercial product to be made with nylon yarn.

1938   Du Pont announced a name for its new synthetic yarn: "nylon".