Upon the filing of such report the Director of Finance shall cause written notice to be served upon the owner of each lot or parcel of land assessed or upon the persons in whose names the same may be assessed for taxation upon the tax duplicate, said notice to be served as is provided for service of summons in civil action or by certified mail or registered mail; and as to all persons who cannot be found, publication of such notice shall be made at least once in a newspaper of general circulation in the City.  Said notice shall contain a statement of the character of the proposed improvement, the fact that the assessment report has been filed with the Council, the amount of such assessment on such lot or parcel of land and the number of installments, and shall set a time and place when objections to the improvement, the character and termini thereof and the assessment and claims for damages will be heard before the Board of Revision of Assessments.