Extract from the Register of European Patents

EP About this file: EP4453369

EP4453369 - UNDERGROUND MINING METHODS VIA BOREHOLES AND MULTILATERAL BLAST-HOLES [Right-click to bookmark this link]
StatusExamination is in progress
Status updated on  16.01.2026
Database last updated on 11.04.2026
FormerRequest for examination was made
Status updated on  27.09.2024
FormerThe international publication has been made
Status updated on  01.07.2023
Most recent event   Tooltip11.03.2026New entry: Reply to examination report 
Applicant(s)For all designated states
Palmer, Daniel B.
5132 Cathedral Oaks Rd.
Santa Barbara, CA 93111 / US
[2024/44]
Inventor(s)01 / see applicant
...
 [2024/44]
Representative(s)Harrison IP Limited
Mereside, Alderley Park
Congleton Road
Nether Alderley
Macclesfield, Cheshire SK10 4TG / GB
[N/P]
Former [2024/44]Harrison IP Limited
3 Ebor House
Millfield Lane
Nether Poppleton
York YO26 6QY / GB
Application number, filing date22912317.916.12.2022
[2024/44]
WO2022US53093
Priority number, dateUS202163293057P22.12.2021         Original published format: US 202163293057 P
[2024/44]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2023121952
Date:29.06.2023
Language:EN
[2023/26]
Type: A1 Application with search report 
No.:EP4453369
Date:30.10.2024
Language:EN
The application published by WIPO in one of the EPO official languages on 29.06.2023 takes the place of the publication of the European patent application.
[2024/44]
Search report(s)International search report - published on:US29.06.2023
(Supplementary) European search report - dispatched on:EP27.06.2025
ClassificationIPC:E21B7/00, E21C37/12, E21B43/248, E21B43/263, F24D3/04, E21B7/06, E21B41/00, E21B43/12, E21B43/28, E21B43/30, E21C41/22, E21D1/03
[2025/31]
CPC:
E21B41/0035 (EP); E21C41/16 (US); E21B43/12 (EP);
E21B43/248 (EP); E21B43/28 (EP); E21B43/30 (EP);
E21B7/061 (EP); E21C37/12 (EP); E21C41/22 (EP);
E21D1/03 (EP); E21F15/08 (US) (-)
Former IPC [2024/44]E21B7/00, E21C37/12, E21B43/248, E21B43/263, F24D3/04
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   ME,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/44]
TitleGerman:UNTERIRDISCHE ABBAUVERFAHREN ÜBER BOHRLÖCHER UND MULTILATERALE SPRENGBOHRUNGEN[2024/44]
English:UNDERGROUND MINING METHODS VIA BOREHOLES AND MULTILATERAL BLAST-HOLES[2024/44]
French:PROCÉDÉS D'EXPLOITATION MINIÈRE SOUTERRAINE PAR L'INTERMÉDIAIRE DE TROUS DE FORAGE ET DE TROUS DE MINES MULTILATÉRAUX[2024/44]
Entry into regional phase22.07.2024National basic fee paid 
22.07.2024Search fee paid 
22.07.2024Designation fee(s) paid 
22.07.2024Examination fee paid 
Examination procedure22.07.2024Examination requested  [2024/44]
02.11.2025Amendment by applicant (claims and/or description)
02.11.2025Date on which the examining division has become responsible
19.01.2026Despatch of a communication from the examining division (Time limit: M04)
10.03.2026Reply to a communication from the examining division
Fees paidRenewal fee
18.12.2024Renewal fee patent year 03
18.12.2025Renewal fee patent year 04
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Documents cited:Search[XIA] US2013000908  (WALTERS CLIFFORD C et al.) [X] 1-3 * abstract * * figures 1-2 * * paragraph [0029] * * paragraph [0073] * * paragraph [0078] - paragraph [0079] * * paragraph [0100] *[I] 4-5,12-15 [A] 6-11
 [A] US2012242135  (THOMSON STUART PATRICK et al.) [A] 1-15 * abstract * * figure 1 * * paragraph [0013] - paragraph [0019] * * paragraph [0022] - paragraph [0027] *
 [A] US2013341029  (ROBERTS JEFFERY JAMES et al.) [A] 1-15 * abstract * * figure 8 * * paragraph [0022] - paragraph [0023] * * paragraph [0107] *
 [A] US4281878  (RICKETTS THOMAS E et al.) [A] 1-15 * abstract * * figures 1-3 * * column 6, line 67 - column 7, line 34 * * column 9, line 19 - line 37 *
International search[Y] US3917346  (JANSSEN ALBERT T et al.) [Y] 1, 23 * entire document *
 [Y] US2007272110  (BRENT GEOFFREY et al.) [Y] 1, 23 * entire document *
 [A] US2014034304  (EISENSCHMID RALPH et al.) [A] 1-42 * entire document *
 [A] US2019353018  (KEMICK JEROME et al.) [A] 1-42 * entire document *
 [A] US4353598  (RICKETTS THOMAS E et al.) [A] 1-42 * entire document *
ExaminationUS2020332639
 AU2015343310
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