Invesco Unit Trusts Taxable Income Series 457: 497J filed Jan 29, 2021

Name: Invesco Unit Trusts Taxable Income Series 457 497J (0001528621-21-000178)
Creator: Invesco Unit Trusts Taxable Income Series 457
Published: 2021-01-29

Form type: 497J
Filing date: Jan 29, 2021
Accession number: 0001528621-21-000178
Filer: Invesco Unit Trusts Taxable Income Series 457 (CIK 1563140)