Led Zeppelin to pay copyright legal costs

Led Zeppelin may have won the copyright war over its creation of Stairway to Heaven, but it's lost its battle to recoup nearly $US800,000 ($A1.05 million) in legal fees.

Judge R Gary Klausner ruled on Monday that the band's songwriters, record label and associated companies were not entitled to claim legal fees and other costs because the copyright lawsuit against them was not frivolous.

A Los Angeles federal jury in June found that guitarist Jimmy Page and singer Robert Plant did not lift the introduction of Stairway from an obscure instrumental written by the late Randy Wolfe, founder of the band Spirit.

The trust for Wolfe, better known as Randy California, claimed Page and Plant were familiar with his work and stole a riff from the short tune Taurus that repeats throughout the first two minutes of their 1971 classic rock anthem.

Wolfe's trust had been seeking credit for the song and millions of dollars in damages. But jurors found the tunes were not similar enough for Led Zeppelin to have violated the 1968 copyright protection of Taurus.

Lawyers for Led Zeppelin sought legal and other fees totalling $US793,000 after insurance companies rejected covering such an old claim.

They argued the lawsuit was frivolous, it was intended to shake down the rock stars for money and that awarding defence costs would deter future meritless copyright claims.

Klausner rejected those arguments, saying he had found the lawsuit had enough merit to go to trial and there was no evidence the plaintiff "harboured nefarious motives."