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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).

Art. 140252

1 Where, in re­spect of one and the same in­ven­tion, two pat­ents hav­ing the same pri­or­ity date have been gran­ted to the same in­vent­or or to his suc­cessor in title, the pat­ent res­ult­ing from the na­tion­al ap­plic­a­tion ceases to have ef­fect as of the date of the grant of the pat­ent res­ult­ing from the in­ter­na­tion­al ap­plic­a­tion, ir­re­spect­ive of wheth­er the pri­or­ity of the na­tion­al ap­plic­a­tion is claimed for the pat­ent res­ult­ing from the in­ter­na­tion­al ap­plic­a­tion or wheth­er the pri­or­ity of the in­ter­na­tion­al ap­plic­a­tion is claimed for the pat­ent res­ult­ing from the na­tion­al ap­plic­a­tion.

2 Art­icle 27 ap­plies ac­cord­ingly.

252In­ser­ted by No I of the FA of 17 Dec. 1976, in force since 1 June 1978 (AS 1977 1997, 1978 550; BBl 1976 II 1).