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Patent details

3434862 Title: RÉDUCTEUR D'ÉCOULEMENT VARIABLE DESTINÉ À ÊTRE UTILISÉ DANS UN PUITS SOUTERRAIN

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Basic information

Application number:
181870163
WO application number:
Type:
European patent granted for BE
Status:
Lapsed
Publication number:
3434862
WO publication number:
1rst applicant's nationality:
Translation language:
EPO publication language:
English
SPC number:

Dates

Filing date:
16/08/2011
Grant date:
30/12/2020
EP publication date:
30/01/2019
WO publication date:
Claims translation received date:
Translation received date (EP publication B1):
Translation received date (EP publication B2):
Translation received date (EP publication B3):
Registration date:
30/12/2020
EP B1 publication date:
30/12/2020
EP B2 publication date:
EP B3 publication date:
Lapsed date:
31/08/2021
Expiration date (if granted and all annual fees paid):
16/08/2031

Applicant

Name:
Halliburton Energy Services Inc.
Legal Form:
From:
30/12/2020
Address:
3000 N. Sam Houston Parkway E., Houston, Texas 77032, United States (US)
To:

Inventor

1

Name:
HOLDERMAN, Luke W.
Legal Form:
Address:
Carrollton, Texas 75006, United States (US)

2

Name:
DYKSTRA, Jason D.
Legal Form:
Address:
Carrollton, Texas 75006, United States (US)

3

Name:
FRIPP, Michael L.
Legal Form:
Address:
Carrollton, Texas 75006, United States (US)

Priority

Priority patent number:
86983610
Priority date:
27/08/2010
Priority country:
United States (US)

Classification

IPC or IDT classification:
E21B 21/10; E21B 34/06; E21B 43/12; E21B 47/18;

Publication

Bulletin

1

Bulletin heading:
EP2
Journal edition number:
2020/30
Publication date:
10/02/2021
Description:
Contains data concerning European patents granted and published (B1 publication) for Belgium and for which no translation needed to be filed

2

Bulletin heading:
VRV
Journal edition number:
2022/07
Publication date:
22/04/2022
Description:
Contains data concerning lapse, annulment or rejection of patent(s) (applications) and SPC (applications)

European Patent Bulletin

Issue number:
202053
Publication date:
30/12/2020
Description:
Grant (B1)

Annual fee

Annual fee(s) Due Date:
Annual fee number:
Expected payer:
Last annual fee payment date:
Last annual fee paid number:
Payer:
Filing date Document type Publication Type Document Description Number of pages