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This category groups works that are in the public domain in the US due to:

  1. They were first published in the US before 1964.
  2. Their copyright renewal was invalid because the renewal copyright was never vested in the assignees who made the copyright renewal application.

Works are added to this category using the {{PD-US-no-renewal-unvested}} talk page template.

See also: Category:Author-PD-US-no-renewal-unvested