Never. They are immune for ever. This article is from the Leftist CNBC:So when are the pharmaceutical company's immunity to lawsuits going to expire?
You can’t sue Pfizer or Moderna if you have severe Covid vaccine side effects. The government likely won’t compensate you for damages either
https://www.cnbc.com/2020/12/16/covid-vaccine-side-effects-compensation-lawsuit.html
And here's why:
According to 42 U.S. Code § 300aa–22, "No vaccine manufacturer shall be liable in a civil action for damages arising from a vaccine-related injury or death associated with the administration of a vaccine after October 1, 1988, if the injury or death resulted from side effects that were unavoidable even though the vaccine was properly prepared and was accompanied by proper directions and warnings."
That something like this could be passed into law is unconscionable. It means that the government has been in the pockets of Big Pharma all along.