Upon the filing of such report the Director of Finance and Public Record shall cause written notice to be served upon the owner or owners or the agent or agents of the owner or owners of each lot or parcel of land to be 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; and as to all nonresidents and persons who cannot be found, a 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 rate of such assessments, the number of installments, and shall set a time and place when complaints and claims will be heard before the Board of Revision of Assessments.