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(12) Patent: | (11) CA 2793294 |
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(54) English Title: | STEEL PRODUCT WITH IMPROVED WEATHERING CHARACTERISTICS IN SALINE ENVIRONMENT |
(54) French Title: | PRODUIT D'ACIER POSSEDANT DES CARACTERISTIQUES DE TENUE AUX INTEMPERIES AMELIOREES DANS UN ENVIRONNEMENT SALIN |
Status: | Granted and Issued |
(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: | LAVERY, DE BILLY, LLP |
(74) Associate agent: | |
(45) Issued: | 2015-09-29 |
(86) PCT Filing Date: | 2010-03-29 |
(87) Open to Public Inspection: | 2011-10-06 |
Examination requested: | 2013-02-07 |
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/EP2010/054086 |
(87) International Publication Number: | EP2010054086 |
(85) National Entry: | 2012-09-14 |
(30) Application Priority Data: | None |
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The present invention is related to a steel product of the weathering steel type, i.e. a product exhibiting increased corrosion resistance after having been exposed to the outside environment for a given time. According to the invention, the steel product is defined by a composition consisting of (in wt%) : - Carbon between 0.03 and 0.2, - Manganese between 0.5 and 2, - Copper between 0 and 0.5, - Ti between 0 and 0.1, - Cr between 0 and 0.5, - Nickel between 0 and 0.2, - Niobium between 0 and 0.1, - Nitrogen between 0 and 0.01, - Sulphur between 0 and 0.01, Phosphor between 0 and 0.01, - Aluminium higher than 0 and maximum 1.5, - Silicon between 0.25 and 1.5, the balance being Fe and accidental impurities, and wherein the sum of the Al and Si levels is higher than about 0.85wt%.
La présente invention a pour objet un produit d'acier du type acier résistant aux intempéries, c'est-à-dire un produit présentant une résistance à la corrosion accrue après avoir été exposé à l'environnement extérieur pendant un temps donné. Selon l'invention, le produit d'acier est défini par une composition constituée (en % en poids) : - de carbone entre 0,03 et 0,2, - de manganèse entre 0,5 et 2, - de cuivre entre 0 et 0,5, - de Ti entre 0 et 0,1, - de Cr entre 0 et 0,5, - de nickel entre 0 et 0,2, - de niobium entre 0 et 0,1, - d'azote entre 0 et 0,01, - de soufre entre 0 et 0,01, de phosphore entre 0 et 0,01, - d'aluminium, plus de 0 et au maximum de 1,5, - de silicium entre 0,25 et 1,5, le reste étant constitué de Fe et d'impuretés accidentelles, et la somme des niveaux d'Al et de Si étant supérieure à environ 0,85 % en poids.
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.
Sorry, the representative drawing for patent document number 2793294 was not found.
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Description | Date |
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Common Representative Appointed | 2019-10-30 |
Common Representative Appointed | 2019-10-30 |
Inactive: Agents merged | 2018-09-01 |
Inactive: Agents merged | 2018-08-30 |
Grant by Issuance | 2015-09-29 |
Inactive: Cover page published | 2015-09-28 |
Pre-grant | 2015-06-03 |
Inactive: Final fee received | 2015-06-03 |
Letter Sent | 2014-12-23 |
4 | 2014-12-23 |
Notice of Allowance is Issued | 2014-12-23 |
Notice of Allowance is Issued | 2014-12-23 |
Inactive: Q2 passed | 2014-12-12 |
Inactive: Approved for allowance (AFA) | 2014-12-12 |
Amendment Received - Voluntary Amendment | 2014-09-15 |
Amendment Received - Voluntary Amendment | 2014-09-11 |
Inactive: S.30(2) Rules - Examiner requisition | 2014-06-02 |
Inactive: Report - No QC | 2014-05-20 |
Letter Sent | 2013-02-14 |
Request for Examination Requirements Determined Compliant | 2013-02-07 |
Request for Examination Received | 2013-02-07 |
All Requirements for Examination Determined Compliant | 2013-02-07 |
Inactive: Reply to s.37 Rules - PCT | 2013-01-31 |
Inactive: First IPC assigned | 2012-12-12 |
Inactive: IPC assigned | 2012-12-12 |
Inactive: IPC assigned | 2012-12-12 |
Inactive: IPC assigned | 2012-12-12 |
Inactive: IPC assigned | 2012-12-12 |
Inactive: Cover page published | 2012-11-15 |
Application Received - PCT | 2012-11-07 |
Inactive: Applicant deleted | 2012-11-07 |
Inactive: Request under s.37 Rules - PCT | 2012-11-07 |
Inactive: Notice - National entry - No RFE | 2012-11-07 |
Inactive: IPC assigned | 2012-11-07 |
Inactive: IPC assigned | 2012-11-07 |
Inactive: IPC assigned | 2012-11-07 |
Inactive: First IPC assigned | 2012-11-07 |
National Entry Requirements Determined Compliant | 2012-09-14 |
Application Published (Open to Public Inspection) | 2011-10-06 |
There is no abandonment history.
The last payment was received on 2015-02-23
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Fee Type | Anniversary Year | Due Date | Paid Date |
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Basic national fee - standard | 2012-09-14 | ||
MF (application, 3rd anniv.) - standard | 03 | 2013-04-02 | 2012-09-14 |
MF (application, 2nd anniv.) - standard | 02 | 2012-03-29 | 2012-09-14 |
Request for examination - standard | 2013-02-07 | ||
MF (application, 4th anniv.) - standard | 04 | 2014-03-31 | 2014-02-25 |
MF (application, 5th anniv.) - standard | 05 | 2015-03-30 | 2015-02-23 |
Final fee - standard | 2015-06-03 | ||
MF (patent, 6th anniv.) - standard | 2016-03-29 | 2016-02-19 | |
MF (patent, 7th anniv.) - standard | 2017-03-29 | 2017-02-22 | |
MF (patent, 8th anniv.) - standard | 2018-03-29 | 2018-02-21 | |
MF (patent, 9th anniv.) - standard | 2019-03-29 | 2019-02-21 | |
MF (patent, 10th anniv.) - standard | 2020-03-30 | 2020-02-21 | |
MF (patent, 11th anniv.) - standard | 2021-03-29 | 2021-02-18 | |
MF (patent, 12th anniv.) - standard | 2022-03-29 | 2022-02-18 | |
MF (patent, 13th anniv.) - standard | 2023-03-29 | 2023-02-22 | |
MF (patent, 14th anniv.) - standard | 2024-03-29 | 2024-02-20 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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ARCELORMITTAL INVESTIGACION Y DESARROLLO SL |
Past Owners on Record |
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EDDY DE GRAVE |
JOACHIM ANTONISSEN |
JULIETH ALEXANDRA MEJIA GOMEZ |