T 0750/94 (Proof of prior publication) of 1.4.1997

European Case Law Identifier: ECLI:EP:BA:1997:T075094.19970401
Date of decision: 01 April 1997
Case number: T 0750/94
Application number: 88309251.2
IPC class: H01L 29/80
Language of proceedings: EN
Distribution: A
Download and more information:
Decision text in EN (PDF, 708.480K)
Documentation of the appeal procedure can be found in the Register
Bibliographic information is available in: EN
Versions: OJ | Published
Title of application: Interface charge enhancement in delta-doped heterostructure
Applicant name: AT&T Corp.
Opponent name: -
Board: 3.4.01
Headnote: I. When an issue of fact is being examined and decided by the EPO on the balance of probabilities, the more serious the issue the more convincing must the evidence be to support it. If a decision upon such an issue may result in refusal or revocation of a European patent, for example in a case concerning alleged prior publication or prior use, the available evidence in relation to that issue must be very critically and strictly examined. A European patent should not be refused or revoked unless the grounds for refusal or revocation (that is, the legal and factual reasons) are fully and properly proved.
II. In accordance with the principle of "free evaluation of evidence" (see Decision T 482/89, OJ EPO 1992, 646) items of evidence relevant to a matter in issue must be given an appropriate weight in order to reliably establish what is likely to have occurred. An unsigned statement by an unknown and unnamed person should in principle be given minimal weight.
Relevant legal provisions:
European Patent Convention 1973 Art 54
European Patent Convention 1973 Art 56
European Patent Convention 1973 Art 113
European Patent Convention 1973 R 67
Keywords: Nominal publication date of journal
Available on demand from publishers (not proved)
Sent by mail to subscribers
Received by at least one subscriber before filing date (not proved)
Made available to the public (not proved)


Cited decisions:
G 0010/93
T 0381/87
T 0482/89
T 0472/92
T 0951/92
Citing decisions:
T 1054/92
T 0929/94
T 0901/95
T 0048/96
T 0363/96
T 0212/97
T 0091/98
T 0182/00
T 0469/00
T 0665/00
T 0284/01
T 1080/01
T 1200/01
T 0060/02
T 0176/02
T 0329/02
T 0339/02
T 0225/03
T 0656/03
T 0759/03
T 0442/04
T 0163/05
T 0313/05
T 1210/05
T 1335/05
T 1134/06
T 0831/07
T 0545/08
T 1469/08
T 0071/09
T 0538/09
T 0286/10
T 0106/11
T 0184/11
T 0918/11
T 0526/12
T 1107/12
T 1066/13

42 references found.

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EPO Guidelines - E General Procedural Matters

EPO Guidelines - G Patentability

Offical Journal of the EPO

Case Law Book: I Patentability

Case Law Book: III Amendments

Case Law Book: IV Divisional Applications

Case Law of the Enlarged Board

General Case Law