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EP0353181

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Extract from the Register of European Patents

EP About this file: EP0353181

EP0353181 - Drill pipe connection [Right-click to bookmark this link]
Status	The application has been withdrawn Status updated on 29.09.1992 Database last updated on 11.04.2026
Most recent event Tooltip	29.09.1992	Withdrawal of application	published on 19.11.1992 [1992/47]
Applicant(s)	For all designated states MANNESMANN Aktiengesellschaft Postfach 10 36 41 40027 Düsseldorf / DE
	[N/P]
Former [1990/05]	For all designated states MANNESMANN Aktiengesellschaft Postfach 10 36 41 D-40027 Düsseldorf / DE
Inventor(s)	01 / Pfeiffer, Gerd, Dr.-Ing. Im Look 55 D-4330 Mülheim / DE
	02 / Quadflieg, Erich, Dr.-Ing. Grotenburgstrasse 209 D-4150 Krefeld / DE
	03 / Lenze, Friedrich, Dr.-Ing. Tiefenbroicher Strasse 76 D-4030 Ratingen 4 / DE
	04 / Krug, Gerhard, Dr.-Ing. Beim Gansacker 26 D-4100 Duisburg 25 / DE
	05 / Siekmeyer, Josef, Dipl.-Ing. Kalkstrasse 3a D-4030 Ratingen 4 / DE
	[1990/05]
Representative(s)	Presting, Hans-Joachim, et al Meissner & Meissner Postfach 33 01 30 14171 Berlin / DE
	[N/P]
Former [1990/05]	Presting, Hans-Joachim, Dipl.-Ing. Meissner & Meissner Patentanwaltsbüro, et al Hohenzollerndamm 89 D-14199 Berlin / DE
Application number, filing date	89730172.7	25.07.1989
	[1990/05]
Priority number, date	DE19883825995	28.07.1988 Original published format: DE 3825995
	[1990/05]
Filing language	DE
Procedural language	DE
Publication	Type:	A2 Application without search report
	No.:	EP0353181
	Date:	31.01.1990
	Language:	DE
	[1990/05]
	Type:	A3 Search report
	No.:	EP0353181
	Date:	17.04.1991
	Language:	DE
	[1991/16]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	27.02.1991
Classification	IPC:	E21B17/042, F16L15/00	[1990/05]
	CPC:	F16L15/001 (EP,US); E21B17/042 (EP,US)
Designated contracting states	AT, DE, ES, FR, GB, GR, IT, NL [1990/05]
Title	German:	Bohrrohrverbindung	[1990/05]
	English:	Drill pipe connection	[1990/05]
	French:	Connexion de tube de forage	[1990/05]
File destroyed:	12.06.1999
Examination procedure	19.03.1991	Examination requested [1991/21]
	14.05.1992	Despatch of a communication from the examining division (Time limit: M04)
	16.09.1992	Application withdrawn by applicant [1992/47]
Fees paid	Renewal fee
	24.06.1991	Renewal fee patent year 03
	Penalty fee
	Additional fee for renewal fee
	31.07.1992	04 M06 Not yet paid
Opt-out from the exclusive Tooltip competence of the Unified Patent Court	See the Register of the Unified Patent Court for opt-out data
	Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:	Search	[Y] WORLD OIL, Band 206, Nr. 1, Januar 1988, Seiten 37-40,42,45-48,52-56,60-64, Houston, Texas, US; "Special integral joints" [Y]

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