Walter Fredrick Morrison, the man credited with inventing the Frisbee, has died.
He was 90 years old.
Utah House Representative Kay McIff, an attorney who represented Morrison in a royalties case, says Morrison died at his home in Monroe, Utah.
McIff is from Richfield, Morrison's original hometown.
Morrison's son, Walt, told The Associated Press that "old age caught up" with his father and that he also had cancer.
Morrison sold the production and manufacturing rights to his "Pluto Platter" in 1957. The plastic flying disc was later renamed the "Frisbee," with sales surpassing 200 million discs.
It is now a staple at beaches and college campuses across the country and spawned sports like Frisbee golf and the team sport Ultimate.
An official disc golf course at Creekside Park in the Salt Lake City suburb of Holladay is named for Morrison.
Morrison co-wrote a book with Frisbee enthusiast and historian Phil Kennedy in 2001. Kennedy released a brief statement on Thursday, wishing his late friend "smoooooth flights."
Walt Morrison said his father is survived by three children.
