T 0631/92 of 11.05.1995
- European Case Law Identifier
- ECLI:EP:BA:1995:T063192.19950511
- Date of decision
- 11 May 1995
- Case number
- T 0631/92
- Petition for review of
- -
- Application number
- 85105534.3
- IPC class
- E21B 43/22
- Language of proceedings
- English
- Distribution
- Distributed to board chairmen (C)
- Download
- Decision in English
- OJ versions
- No OJ links found
- Other decisions for this case
- -
- Abstracts for this decision
- -
- Application title
- Thermally stable mobility control reagents for harsh environment reservoirs
- Applicant name
- AMERICAN CYANAMID COMPANY
- Opponent name
- Allied Colloids Limited
Chemische Fabrik Stockhausen GmbH Patentabteilung - Board
- 3.3.03
- Headnote
- -
- Relevant legal provisions
- European Patent Convention Art 54(2) 1973European Patent Convention Art 56 1973
- Keywords
- Novelty (affirmed) - use in required conditions not disclosed
Inventive step (affirmed) - interpretation of prior art documents in the light of the technological context of their publication date - prejudice overcome
Appeal procedure - filing of amended claims - late stage
Amendments - content of the application as originally filed
Late filed material
Novelty - chemical inventions - overlapping of ranges defined by parameters
Inventive step - technical prejudice in the art - Catchword
- -
- Citing cases
- -
ORDER
For these reasons it is decided that:
1. The decision under appeal is set aside.
2. The case is remitted to the Opposition Division with the order to maintain the patent on the basis of the claims filed on 8 April 1992 and with the description as granted.