| Patents > § 1.603 Interference between applications; subject matter of the interference. - PATENT RULES |
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§ 1.603 Interference between applications; subject matter of the interference. - PATENT RULES
§ 1.603 Interference between applications; subject matter of the interference.
Before an interference is declared between two or more applications, the examiner must be of the opinion that there is interfering subject matter claimed in the applications which is patentable to each applicant subject to a judgment in the interference. The interfering subject matter shall be defined by one or more counts. Each application must contain, or be amended to contain, at least one claim that is patentable over the prior art and corresponds to each count. All claims in the applications which define the same patentable invention as a count shall be designated to correspond to the count.
[Added, 49 FR 48416, Dec. 12, 1984, effective Feb. 11, 1985; revised, 60 FR 14488, Mar. 17, 1995, effective Apr. 21, 1995]
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