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: 156 809 018 patent documents

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176 501 new documents added

1 938 899 documents amended

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EP 0014161 B1 19830330 - METHOD OF TREATING A MULTIFILAMENT BUNDLE OF PITCH FIBERS AND A SPIN SIZE COMPOSITION THEREFOR

Title (en)

METHOD OF TREATING A MULTIFILAMENT BUNDLE OF PITCH FIBERS AND A SPIN SIZE COMPOSITION THEREFOR

Publication

EP 0014161 B1 19830330 (EN)

Application

EP 80400136 A 19800128

Priority

US 732179 A 19790129
US 732279 A 19790129

Abstract (en)

[origin: EP0014161A2] A multifilament bundle of pitch fibers is treated with a dispersion of graphite or carbon black in water in which is dissolved a water-soluble oxidizing agent and a water-soluble surfactant.

IPC 1-7

D01F 9/14

IPC 8 full level

D01F 9/145 (2006.01)

CPC (source: EP)

D01F 9/145 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0014161 A2 19800806; EP 0014161 A3 19800917; EP 0014161 B1 19830330; DE 3062488 D1 19830505

DOCDB simple family (application)

EP 80400136 A 19800128; DE 3062488 T 19800128