Invesco Unit Trusts Taxable Income Series 642: 497J filed Jan 13, 2023

Name: Invesco Unit Trusts Taxable Income Series 642 497J (0001528621-23-000011)
Creator: Invesco Unit Trusts Taxable Income Series 642
Published: 2023-01-13

Form type: 497J
Filing date: Jan 13, 2023
Accession number: 0001528621-23-000011
Filer: Invesco Unit Trusts Taxable Income Series 642 (CIK 1686062)