When property subject to usufruct changes form without an act of the usufructuary, the usufruct does not terminate even though the property may no longer serve the use for which it was originally destined.
When property subject to usufruct is converted into money or other property without an act of the usufructuary, as in a case of expropriation of an immovable or liquidation of a corporation, the usufruct terminates as to the property converted and attaches to the money or other property received by the usufructuary.