Those laws are largely unconstitutional.
Windows on criminal prosecution are unconstitutional, windows on civil lawsuits are not unconstitutional in USA.
in 2003, in a split 5–4 decision.[2] The Supreme Court held that "a law enacted after expiration of a previously applicable limitations period violates the Ex Post Facto Clause when it is applied to revive a previously time-barred prosecution."[1]
https://en.wikipedia.org/wiki/Stogner_v._California
https://www.cga.ct.gov/2003/olrdata/jud/rpt/2003-R-0512.htm