Invesco Unit Trusts Taxable Income Series 450: 497J filed Sep 28, 2021

Name: Invesco Unit Trusts Taxable Income Series 450 497J (0001528621-21-001559)
Creator: Invesco Unit Trusts Taxable Income Series 450
Published: 2021-09-28

Form type: 497J
Filing date: Sep 28, 2021
Accession number: 0001528621-21-001559
Filer: Invesco Unit Trusts Taxable Income Series 450 (CIK 1547634)