Invesco Unit Trusts Taxable Income Series 431: 497J filed Apr 30, 2021

Name: Invesco Unit Trusts Taxable Income Series 431 497J (0001528621-21-000696)
Creator: Invesco Unit Trusts Taxable Income Series 431
Published: 2021-04-30

Form type: 497J
Filing date: Apr 30, 2021
Accession number: 0001528621-21-000696
Filer: Invesco Unit Trusts Taxable Income Series 431 (CIK 1547607)