T 0461/88 (Microchip) of 17.4.1991

European Case Law Identifier: ECLI:EP:BA:1991:T046188.19910417
Date of decision: 17 April 1991
Case number: T 0461/88
Application number: 82101616.9
IPC class: B41F 31/04
B41F 33/16
Language of proceedings: DE
Distribution:
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Documentation of the appeal procedure can be found in the Register
Bibliographic information is available in: DE | EN | FR
Versions: OJ
Title of application: -
Applicant name: Heidelb. Druckmaschinen
Opponent name: WIFAG; W.Lamberz
Board: 3.2.03
Headnote: Where a device which has been disclosed by public prior use contains a microchip on which a program written in machine language is stored which realises a control procedure, the said procedure does not form part of the state of the art under Article 54(2) EPC if no logic diagrams and block diagrams are available to skilled members of the interested public, if the principle underlying the control procedure is not discernible by inspection, and if, moreover, the technical possibility exists of ascertaining the contents of the program but experience suggests that, under the circumstances, especially in view of cost-benefit considerations, this cannot have occurred.
Relevant legal provisions:
European Patent Convention 1973 Art 54(2)
European Patent Convention 1973 Art 100(a)
Keywords: Program on microchip not disclosed
Novelty (yes)
Catchwords:

-

Cited decisions:
-
Citing decisions:
T 0649/92
T 0952/92
T 0108/94
T 0931/97
T 0083/99
T 0212/99
T 0263/00
T 1901/08
T 0347/10

Source: http://www.epo.org/law-practice/case-law-appeals/recent/t880461ep1.html

Date retrieved: 17 May 2021

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