Priority Date: 29.05.12 (CN 20121169645)

METHOD FOR FLUID CARRIAGE IN DEEP-SEAM COAL HYDRAULIC MINING

  • Application ID: EP13796922
  • Status: APPLICATION WITHDRAWN

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Specialization

This EP application has the IPC class E21 (EARTH OR ROCK DRILLING; MINING). Here you find a list of all patent agent firms which are specialized in this IPC class. For a similar patent, they might be a good choice.

Timeline

  • 29.05.2012 - Priority Date (CN 20121169645)
  • 05.12.2013 - Publication A1 (WO2013178012)
  • 08.04.2015 - Publication A1 (EP2857635)

IPC Classification