| European Case Law Identifier: | ECLI:EP:BA:1999:T054197.19990421 | ||||||||
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| Date of decision: | 21 April 1999 | ||||||||
| Case number: | T 0541/97 | ||||||||
| Application number: | 94301089.2 | ||||||||
| IPC class: | A24D 3/10 | ||||||||
| Language of proceedings: | EN | ||||||||
| Distribution: | B | ||||||||
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| Title of application: | Filter for smoking article comprising a water disintegrative paper | ||||||||
| Applicant name: | British American Tobacco (Investments) Limited | ||||||||
| Opponent name: | - | ||||||||
| Board: | 3.2.04 | ||||||||
| Headnote: | - | ||||||||
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| Keywords: | Insufficiently defined test for measuring an unusual parameter Indefinite scope of claim Added details of test - not a disclaimer but extension of subject-matter |
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| Catchwords: |
A test to measure a unusual parameter must be defined sufficiently to produce an acceptably accurate result. Specifying, after the filing date, the device to be used in a test to measure an unusual parameter, and thus excluding the use of other devices, is not seen as a disclaimer in the accepted sense of the word but in this case as an extension of the subject-matter of the originally filed application. If the value of an unusual parameter essential to the claimed invention cannot be sufficiently accurately measured then the scope of the claim is indefinite. |
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Source: http://www.epo.org/law-practice/case-law-appeals/recent/t970541eu1.html
Date retrieved: 17 May 2021