About 7 days at 40°F (4°C) or below, according to USDA FoodKeeper v128. That window runs from the day you bought it — FoodKeeper publishes no separate after-opening figure for this one.
Does Pate (poultry) need to be refrigerated?
Yes — keep Pate (poultry) at 40°F (4°C) or below. Refrigerate at 40°F (4°C) or below.
How can you tell if Pate (poultry) is bad?
Look for: A slimy or sticky surface; A grey or greenish tint; A sour or sulphur-like smell; A swollen or leaking package. Never taste something to test it — when in doubt, throw it out.