ATE52130T1 - Ventil zum gebrauch in bohrungen. - Google Patents

Ventil zum gebrauch in bohrungen.

Info

Publication number: ATE52130T1
Authority: AT; Austria
Prior art keywords: valve; holes
Prior art date: 1985-11-08

Application number

AT86906404T

Other languages

English (en)

Inventor

Hedayat H Hassanzadeh

Guy L Mcclung

Original Assignee

Weatherford Us Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1985-11-08

Filing date

1986-10-31

Publication date

1990-05-15

1985-11-08 Priority claimed from US06/796,665 external-priority patent/US4625762A/en

1986-10-31 Application filed by Weatherford Us Inc filed Critical Weatherford Us Inc

1990-05-15 Application granted granted Critical

1990-05-15 Publication of ATE52130T1 publication Critical patent/ATE52130T1/de

Links

AT86906404T 1985-11-08 1986-10-31 Ventil zum gebrauch in bohrungen. ATE52130T1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US06/796,665 US4625762A (en)	1985-11-08	1985-11-08	Auto-fill flow valve
PCT/GB1986/000674 WO1987003037A1 (en)	1985-11-08	1986-10-31	Valve for use in well bores
EP19860906404 EP0245341B1 (de)	1985-11-08	1986-10-31	Ventil zum gebrauch in bohrungen

Publications (1)

Publication Number	Publication Date
ATE52130T1 true ATE52130T1 (de)	1990-05-15

Family

ID=26107424

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT86906404T ATE52130T1 (de)	1985-11-08	1986-10-31	Ventil zum gebrauch in bohrungen.

Country Status (1)

Country	Link
AT (1)	ATE52130T1 (de)

1986
- 1986-10-31 AT AT86906404T patent/ATE52130T1/de not_active IP Right Cessation

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Legal Events

Date	Code	Title
1990-09-15	UEP	Publication of translation of european patent specification
1993-04-15	EEIH	Change in the person of patent owner
1993-07-15	EEIH	Change in the person of patent owner
1994-07-15	REN	Ceased due to non-payment of the annual fee