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US 2744122

The Chemical Discovery Behind the First Oral Contraceptive Pill

A 1952 patent for a synthetic hormone that became the active ingredient in the first effective oral contraceptive pill.

Statusexpired

Granted1956

Expires1972

Claims1

Forward citations19

Prior art3

AssigneeSyntex SA

InventorsDjerassi Carl, Miramontes Luis +1

Patent B

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