Section 3--803. Notice to Third Party.

Where a defendant is sued for breach of an obligation for which a
third person is answerable over under this Article he may give the third
person written notice of the litigation, and the person notified may
then give similar notice to any other person who is answerable over to
him under this Article. If the notice states that the person notified
may come in and defend and that if the person notified does not do so he
will in any action against him by the person giving the notice be bound
by any determination of fact common to the two litigations, then unless
after seasonable receipt of the notice the person notified does come in
and defend he is so bound.