By MICHAEL LIEDTKE
AP Technology Writer
SAN JOSE, Calif. (AP) — A federal judge on Thursday tentatively declined to overturn the jury conviction of disgraced Theranos CEO Elizabeth Holmes on four felony counts of fraud and conspiracy. That leaves the former Silicon Valley star a step closer to serving prison time. U.S. District Judge Edward Davila won’t make that decision final until Oct. 17, when he is scheduled to sentence Holmes for duping investors in her much-hyped blood-testing startup. Holmes, 38, faces up to 20 years in prison and a $250,000 fine, plus restitution, for lying to investors about a Theranos technology she hailed as a revolution in healthcare but which in practice produced dangerously inaccurate results.