T 0526/92 (Lubricating oil additive/BP) of 25.10.1994
- European Case Law Identifier
- ECLI:EP:BA:1994:T052692.19941025
- Date of decision
- 25 October 1994
- Case number
- T 0526/92
- Petition for review of
- -
- Application number
- 83302734.5
- IPC class
- C10M 129/40
- Language of proceedings
- English
- Distribution
- Distributed to board chairmen and members (B)
- Download
- Decision in English
- OJ versions
- No OJ links found
- Other decisions for this case
- -
- Abstracts for this decision
- -
- Application title
- Lubricating oil additives
- Applicant name
- EXXON RESEARCH AND ENGINEERING COMPANY
- Opponent name
- BP Chemicals Limited
- Board
- 3.3.01
- Headnote
- -
- Relevant legal provisions
- European Patent Convention Art 123(2) 1973
- Keywords
- Amendments - added subject-matter - amendment extending subject- matter of the application as filed
Creation of an originally not disclosed range - Catchword
- If values of a parameter are only given in the examples, without the significance of this parameter becoming evident from the original specification, no range must be arbitrarily formed, which is open ended at one side and has one limit selected from the examples (5.3.1, 5.3.6).
ORDER
For these reasons it is decided that:
1. The decision under appeal is set aside.
2. The patent is revoked.