Invesco Unit Trusts Taxable Income Series 457: 497J filed Jan 29, 2019

Name: Invesco Unit Trusts Taxable Income Series 457 497J (0001528621-19-000262)
Creator: Invesco Unit Trusts Taxable Income Series 457
Published: 2019-01-29

Form type: 497J
Filing date: Jan 29, 2019
Accession number: 0001528621-19-000262
Filer: Invesco Unit Trusts Taxable Income Series 457 (CIK 1563140)