The United States Supreme Court has held that a New York statute providing that a natural mother could withhold her consent to the adoption of her child, but denying the same right to an unwed father, violates the equal protection clause of the fourteenth amendment.
Caban v. Mohammed, 99 S. Ct. 1760 (1979).
Ronald J. Rademacher,
Constitutional Law - Fourteenth Amendment - Equal Protection Clause - Adoption - Rights of Putative Fathers,
Duq. L. Rev.
Available at: https://dsc.duq.edu/dlr/vol18/iss2/12