WIPO-Administered Treaties
Contracting Parties > Patent Cooperation Treaty (Total Contracting Parties : 147) > United States of America
| Contracting Party | Signature | Instrument | In Force | Details |
|---|---|---|---|---|
| United States of America | June 19, 1970 | Ratification: November 26, 1975 | January 24, 1978 | Details |
