Invesco Unit Trusts Taxable Income Series 431: 497J filed May 1, 2020

Name: Invesco Unit Trusts Taxable Income Series 431 497J (0001528621-20-000957)
Creator: Invesco Unit Trusts Taxable Income Series 431
Published: 2020-05-01

Form type: 497J
Filing date: May 1, 2020
Accession number: 0001528621-20-000957
Filer: Invesco Unit Trusts Taxable Income Series 431 (CIK 1547607)