Constructive notice is a legal fiction that is associated with the understanding that notice to something has been received by a particular entity or person, when in reality the notice was not delivered physically / served in person.
A summons advertised in a newspaper, for example, is considered to be constructive notice.
Constructive notice can occur in a variety of situations, such as in the following example:
Consider a slip and fall case resulting from the dangerous icy condition in a city. In this case, city administration might be held responsible for the incident and would be given constructive notice.