On February 19, 2004, the Pennsylvania Supreme Court voted 4-3 to strike down a Pennsylvania tort reform statute that limited the liability of certain manufacturers that have been unfairly drawn into the asbestos tort litigation morass. The court ruled that the statute violated the state constitution by seeking to change liability rules applicable to pending lawsuits. The decision was a setback for WLF, which filed a brief urging the court to uphold the statute. The statute stated that a Pennsylvania corporation that never manufactured asbestos products could not be brought into asbestos suits simply because it acquired a company that formerly manufactured asbestos products but had ceased doing so long before the acquisition took place.