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: 157 117 910 patent documents

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

139 301 new documents added

1 340 825 documents amended

GPI key values

Run regular monitoring (e.g. monthly or quarterly) of technical areas or companies

Use built-in charts to visualise technical trends and patenting activity of companies

Choose the data you want to see and download to focus on what you are interested in

Run data quality assessments to measure the risk of incomplete search results

EP 0818578 B1 20001025 - Cover for a manhole

Title (en)

Cover for a manhole

Title (de)

Abdeckung für eine Bodenöffnung

Title (fr)

Couvercle pour regard

Publication

EP 0818578 B1 20001025 (DE)

Application

EP 97810155 A 19970317

Priority

CH 175196 A 19960711

Abstract (en)

[origin: EP0818578A1] The cover (2) is supported in a frame (1). A support surface (22) on the outer circumference of the cover and a contact face (11) on the frame are mainly formed by jacket sections of a straight cylinder, which are defined by two imaginary non-parallel cutting planes (31,32). The upper imaginary cutting plane extends parallel to the top face of the cover, or contains it. The lower plane is at right angles to the cylinder jacket lines. The two planes cut across each other at an angle of between 1 and 15 degrees .

IPC 1-7

E02D 29/14

IPC 8 full level

E02D 29/14 (2006.01)

CPC (source: EP)

E02D 29/14 (2013.01)

Designated contracting state (EPC)

AT CH DE FR GB LI

DOCDB simple family (publication)

EP 0818578 A1 19980114; EP 0818578 B1 20001025; AT E197182 T1 20001115; DE 59702520 D1 20001130

DOCDB simple family (application)

EP 97810155 A 19970317; AT 97810155 T 19970317; DE 59702520 T 19970317