Invesco Unit Trusts Taxable Income Series 431: 497J filed May 3, 2023

Name: Invesco Unit Trusts Taxable Income Series 431 497J (0001528621-23-000739)
Creator: Invesco Unit Trusts Taxable Income Series 431
Published: 2023-05-03

Form type: 497J
Filing date: May 3, 2023
Accession number: 0001528621-23-000739
Filer: Invesco Unit Trusts Taxable Income Series 431 (CIK 1547607)