An indemnity is distinct from a guarantee, which is the promise of a third party to honor the obligation of a party to a contract should that party be unable or unwilling to do so (usually a guarantee is limited to an obligation to pay a debt).
Answer: Heavy Cream Has a Shelf Life Of Up To A Month. According to the USDA, heavy cream can be stored in the refrigerator (opened or unopened) for up to a month. This assumes that it has been kept at a constant refrigerator temperature and not left out on the counter for stretches of time. Discard any cream with mold or an off odor. When in doubt, throw it out.
1 One cup of heavy cream will yield about 2 cups of whipped cream. After a few hours, it will start to lose volume, but you can mix it again and it's still good to eat, even after a day or two.  The higher the butterfat content, the better it will whip, since the whipped fat traps the air bubbles.