Betty Boop and Indefinite Copyright

An anonymous reader writes "Apparently the Fleischer estate has lost a court battle for the rights to Betty Boop, a character created by Grim Natwick at Max Fleischer's studio in 1930. The 9th Circuit US Court of Appeals (based in San Francisco) ruled against the Fleischers, saying in their decision, 'If we ruled that AVELA's depictions of Betty Boop infringed Fleischer's trademarks, the Betty Boop character would essentially never enter the public domain.'"