Federal Act
on Patents for Inventions
(Patents Act, PatA)1

of 25 June 1954 (Status as of 1 July 2023)

1Amended by No I of the FA of 3 Feb. 1995, in force since 1 Sept. 1995 (AS 1995 2879; BBl 1993 III 706).


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Art. 140o

1 An ap­plic­a­tion to ex­tend a cer­ti­fic­ate’s term of pro­tec­tion may be made with the ap­plic­a­tion for is­su­ance of a cer­ti­fic­ate at the earli­est and two years be­fore the cer­ti­fic­ate ex­pires at the latest.

2 If the dead­line is not re­spec­ted, the IPI shall re­ject the ap­plic­a­tion.

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