A court ruled in favor of Louisiana-Pacific.

The company said the U.S. Court of Appeals overturned a December, 1982, ruling by the U.S. District Court in Oregon, which had imposed a $4-million fine against the firm. The case relates to a Federal Trade Commission order requiring divestiture of a medium-density fiberboard plant in Rocklin, Calif., owned by an L-P unit. The Portland, Ore., firm was unable to sell the Rocklin plant within the order’s two-year deadline. L-P asked the FTC to “reopen” the order in view of new circumstances, but the FTC refused and asked the court to impose a fine against L-P.