| European Case Law Identifier: | ECLI:EP:BA:1991:T050789.19910131 | ||||||||
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| Date of decision: | 31 January 1991 | ||||||||
| Case number: | T 0507/89 | ||||||||
| Application number: | 81303826.2 | ||||||||
| IPC class: | C08G 63/22 | ||||||||
| Language of proceedings: | EN | ||||||||
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| Title of application: | Process for the preparation of polybutylene terephtalate | ||||||||
| Applicant name: | Celanese Corporation | ||||||||
| Opponent name: | Akzo N.V. | ||||||||
| Board: | 3.3.03 | ||||||||
| Headnote: | - | ||||||||
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| Keywords: | Novelty (yes) Inventive step (yes) - Hindsight analysis - Time factor Apportionment of costs (no) |
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Source: http://www.epo.org/law-practice/case-law-appeals/recent/t890507eu1.html
Date retrieved: 17 May 2021