Article 4 Revocations Original text. Later amendments are not shown. The Patents Act 1977 (Isle of Man) Order 1978f1 and the Patents Act 1977 (Isle of Man) (Variation) Order 1990f2 are revoked. Annotations Footnotes f1 S.I. 1978/621. f2 S.I. 1990/2295. ← Article 3 Article 4 Signature →