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: 157 484 516 patent documents

This week's update (26/07/2024 12:00 CET):

147 225 new documents added

921 612 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 0168705 B1 19881019 - BATH AND PROCESS FOR ELECTROPLATING HARD GOLD

Title (en)

BATH AND PROCESS FOR ELECTROPLATING HARD GOLD

Publication

EP 0168705 B1 19881019 (DE)

Application

EP 85108129 A 19850701

Priority

DE 3424757 A 19840705
DE 3509245 A 19850314

Abstract (en)

[origin: EP0168705A1] 1. An acid cyanide bath for the hard-gold electroplating of electrical contact components, which contains potassium gold cyanide, malic acid and potassium hydroxide in aqueous solution, characterised in that the aqueous solution is produced from a) 5 to 45 g/l gold as potassium gold cyanide, b) 50 to 300 g/l malic acid, c) potassium hydroxide to set a pH-value of between 3.8 and 5.0, d) 0 to 300 mg/l cobalt or nickel in the form of a water-soluble salt, and e) water.

IPC 1-7

C25D 3/48; C25D 3/62

IPC 8 full level

C25D 3/48 (2006.01); C25D 3/62 (2006.01)

CPC (source: EP)

C25D 3/48 (2013.01); C25D 3/62 (2013.01); H01H 2011/046 (2013.01)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0168705 A1 19860122; EP 0168705 B1 19881019; DE 3565697 D1 19881124

DOCDB simple family (application)

EP 85108129 A 19850701; DE 3565697 T 19850701