Invesco Unit Trusts Taxable Income Series 431: 497J filed May 1, 2019

Name: Invesco Unit Trusts Taxable Income Series 431 497J (0001528621-19-001060)
Creator: Invesco Unit Trusts Taxable Income Series 431
Published: 2019-05-01

Form type: 497J
Filing date: May 1, 2019
Accession number: 0001528621-19-001060
Filer: Invesco Unit Trusts Taxable Income Series 431 (CIK 1547607)