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You can use Global Patent Index (GPI) to carry out detailed searches in the EPO's worldwide bibliographic (DOCDB), legal event (INPADOC) and full-text data sets, and download or visualise the search results for statistical analysis.

Current content: 156 632 791 patent documents

This week's update (21/06/2024 12:00 CET):

121 162 new documents added

981 197 documents amended

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EP 0444632 A1 19910904 - Web-winding core.

Title (en)

Web-winding core.

Title (de)

Wickelhülse für eine Bahn.

Title (fr)

Noyau d'enroulement pour une bande.

Publication

EP 0444632 A1 19910904 (EN)

Application

EP 91102924 A 19910227

Priority

JP 1885190 U 19900228

Abstract (en)

A web-winding core of the present invention is characterized in that a surface of the winding core on which a web is adapted to be wound has a recessed surface which has a shape analogous to the shape of a leading edge portion of the web and is analogous in thickness to the web. <IMAGE>

IPC 1-7

B65H 75/28

IPC 8 full level

B65H 75/28 (2006.01)

CPC (source: EP)

B65H 75/28 (2013.01); B65H 2301/414225 (2013.01)

Citation (search report)

[X] FR 1453686 A 19660603 - BEILLARD ETS
[A] US 4697757 A 19871006 - NAKAYA TSUTOMU [JP], et al

Designated contracting state (EPC)

DE NL

DOCDB simple family (publication)

EP 0444632 A1 19910904; JP H03110077 U 19911112

DOCDB simple family (application)

EP 91102924 A 19910227; JP 1885190 U 19900228