Invesco Unit Trusts Taxable Income Series 640: 487 filed Sep 23, 2022

Name: Invesco Unit Trusts Taxable Income Series 640 487 (0001528621-22-001452)
Creator: Invesco Unit Trusts Taxable Income Series 640
Published: 2022-09-23

Form type: 487
Filing date: Sep 23, 2022
Accession number: 0001528621-22-001452
Filer: Invesco Unit Trusts Taxable Income Series 640 (CIK 1686060)