GPI coverage and content

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: 157 337 350 patent documents

This week's update (19/07/2024 12:00 CET):

219 431 new documents added

1 247 852 documents amended

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EP 0059286 A1 19820908 - Envelope.

Title (en)

Envelope.

Title (de)

Briefumschlag.

Title (fr)

Enveloppe de lettre.

Publication

EP 0059286 A1 19820908 (EN)

Application

EP 81304736 A 19811012

Priority

KR 810001502 U 19810304

Abstract (en)

An envelope (1) has a closure flap (5) connected to the envelope along a fold line (2). A tear filament (3) is provided inside the fold line and has at least one projecting tab (4) by means of which the filament may be pulled to tear the envelope when sealed along the fold line (2).

IPC 1-7

B65D 27/38

IPC 8 full level

B65D 27/38 (2006.01)

CPC (source: EP)

B65D 27/38 (2013.01)

Citation (search report)

DE 804998 C 19510504 - FRITZ BACKHAUS
CH 140733 A 19300630 - KRAMER JAKOB [CH]
GB 122752 A 19190206 - HOPKINSON HARRY

Designated contracting state (EPC)

CH DE FR GB IT

DOCDB simple family (publication)

EP 0059286 A1 19820908

DOCDB simple family (application)

EP 81304736 A 19811012