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(12) Patent: | (11) CA 2622410 |
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(54) English Title: | PROCESS FOR MANUFACTURING COLD-FORMED PRECISION STEEL PIPES |
(54) French Title: | PROCEDE DE FABRICATION DE TUBES D'ACIER DE PRECISION FABRIQUES A FROID |
Status: | Expired and beyond the Period of Reversal |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | SMART & BIGGAR LP |
(74) Associate agent: | |
(45) Issued: | 2015-05-05 |
(86) PCT Filing Date: | 2006-08-18 |
(87) Open to Public Inspection: | 2007-03-29 |
Examination requested: | 2011-06-28 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/DE2006/001457 |
(87) International Publication Number: | DE2006001457 |
(85) National Entry: | 2008-03-13 |
(30) Application Priority Data: | ||||||
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The invention relates to a process for manufacturing cold-formed, in
particular
cold-drawn, precision steel pipes for application in particular as pressure-
operated cylinder
pipes with optimum addition of one or several alloying elements as well as
impurities
caused by melting. A seamless, hot-formed pipe blank or welded pipe blank made
from a hot strip with defined starting condition is hereby drawn in one pass
or in
several passes into a finished pipe, and the pipe undergoes a heat treatment
before
the finishing pass.
L'invention concerne un procédé de fabrication de tubes d'acier de précision fabriqués à froid, notamment étirés à froid, notamment destinés à être employés en tant que tubes de cylindres sous pression, avec addition optimale d'un ou plusieurs éléments d'alliage et d'impuretés dues à la fusion. Une ébauche de tube continue fabriquée à chaud ou fabriquée par soudage à partir d'une bande à laminer est étirée à partir d'un état initial défini, dans une ou plusieurs phases d'étirage, de manière à obtenir un tube fini, et le tube est soumis à un traitement de finition avant la phase d'étirage finale.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
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Description | Date |
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Time Limit for Reversal Expired | 2024-02-20 |
Letter Sent | 2023-08-18 |
Letter Sent | 2023-02-20 |
Letter Sent | 2022-08-18 |
Inactive: COVID 19 - Deadline extended | 2020-08-06 |
Common Representative Appointed | 2019-10-30 |
Common Representative Appointed | 2019-10-30 |
Grant by Issuance | 2015-05-05 |
Inactive: Cover page published | 2015-05-04 |
Inactive: Final fee received | 2015-02-18 |
Pre-grant | 2015-02-18 |
Change of Address or Method of Correspondence Request Received | 2015-01-15 |
Notice of Allowance is Issued | 2014-11-12 |
Letter Sent | 2014-11-12 |
4 | 2014-11-12 |
Notice of Allowance is Issued | 2014-11-12 |
Inactive: Q2 passed | 2014-09-22 |
Inactive: Approved for allowance (AFA) | 2014-09-22 |
Amendment Received - Voluntary Amendment | 2014-09-02 |
Letter Sent | 2014-07-29 |
Letter Sent | 2014-07-29 |
Letter Sent | 2014-07-29 |
Inactive: Single transfer | 2014-07-24 |
Inactive: S.30(2) Rules - Examiner requisition | 2014-05-15 |
Inactive: Report - No QC | 2014-04-30 |
Amendment Received - Voluntary Amendment | 2014-03-04 |
Inactive: S.29 Rules - Examiner requisition | 2013-10-17 |
Inactive: S.30(2) Rules - Examiner requisition | 2013-10-17 |
Inactive: Report - QC passed | 2013-10-01 |
Letter Sent | 2011-07-14 |
All Requirements for Examination Determined Compliant | 2011-06-28 |
Request for Examination Requirements Determined Compliant | 2011-06-28 |
Request for Examination Received | 2011-06-28 |
Inactive: Declaration of entitlement - PCT | 2008-06-13 |
Inactive: Declaration of entitlement/transfer requested - Formalities | 2008-06-10 |
Inactive: Cover page published | 2008-06-09 |
Inactive: Notice - National entry - No RFE | 2008-06-05 |
Inactive: First IPC assigned | 2008-04-03 |
Application Received - PCT | 2008-04-02 |
National Entry Requirements Determined Compliant | 2008-03-13 |
Application Published (Open to Public Inspection) | 2007-03-29 |
There is no abandonment history.
The last payment was received on 2014-07-28
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
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Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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SALZGITTER MANNESMANN PRECISION GMBH |
Past Owners on Record |
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JOSEF SIEKMEYER |
LOTHAR SEE |
SVEN HERZIG |
WOLFGANG MUSSMANN |