SE439329B - Anvendning av ett ferritiskt krom-molybden-nickelstal for framstellning av foremal, som utsettes for korrosion - Google Patents
Anvendning av ett ferritiskt krom-molybden-nickelstal for framstellning av foremal, som utsettes for korrosionInfo
- Publication number
- SE439329B SE439329B SE7800362A SE7800362A SE439329B SE 439329 B SE439329 B SE 439329B SE 7800362 A SE7800362 A SE 7800362A SE 7800362 A SE7800362 A SE 7800362A SE 439329 B SE439329 B SE 439329B
- Authority
- SE
- Sweden
- Prior art keywords
- content
- corrosion
- mmm
- nitrogen
- carbon
- Prior art date
Links
- 230000007797 corrosion Effects 0.000 title claims description 32
- 238000005260 corrosion Methods 0.000 title claims description 32
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims description 20
- 229910052759 nickel Inorganic materials 0.000 title claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 74
- 229910000831 Steel Inorganic materials 0.000 claims description 48
- 239000010959 steel Substances 0.000 claims description 48
- 229910052757 nitrogen Inorganic materials 0.000 claims description 40
- 229910052799 carbon Inorganic materials 0.000 claims description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 32
- 229910052758 niobium Inorganic materials 0.000 claims description 27
- 229910052782 aluminium Inorganic materials 0.000 claims description 26
- 229910052804 chromium Inorganic materials 0.000 claims description 18
- 229910052750 molybdenum Inorganic materials 0.000 claims description 11
- 229910052719 titanium Inorganic materials 0.000 claims description 11
- 229910052726 zirconium Inorganic materials 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000012535 impurity Substances 0.000 claims 1
- 239000010955 niobium Substances 0.000 description 27
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 26
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 23
- 239000011651 chromium Substances 0.000 description 15
- 238000007792 addition Methods 0.000 description 12
- 239000000654 additive Substances 0.000 description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 10
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 10
- 239000010936 titanium Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 229910001149 41xx steel Inorganic materials 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- -1 chlorine ions Chemical class 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000714 At alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- QQHSIRTYSFLSRM-UHFFFAOYSA-N alumanylidynechromium Chemical compound [Al].[Cr] QQHSIRTYSFLSRM-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Arc Welding In General (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2701329A DE2701329C2 (de) | 1977-01-14 | 1977-01-14 | Korrosionsbeständiger ferritischer Chrom-Molybdän-Nickelstahl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7800362L SE7800362L (sv) | 1978-07-15 |
| SE439329B true SE439329B (sv) | 1985-06-10 |
Family
ID=5998662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7800362A SE439329B (sv) | 1977-01-14 | 1978-01-12 | Anvendning av ett ferritiskt krom-molybden-nickelstal for framstellning av foremal, som utsettes for korrosion |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4155752A (nl) |
| JP (1) | JPS5941505B2 (nl) |
| AT (1) | AT369435B (nl) |
| DE (1) | DE2701329C2 (nl) |
| ES (1) | ES465968A1 (nl) |
| FR (1) | FR2377457B1 (nl) |
| GB (1) | GB1546051A (nl) |
| IT (1) | IT1155765B (nl) |
| NL (1) | NL7800447A (nl) |
| SE (1) | SE439329B (nl) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2737116C2 (de) * | 1977-08-17 | 1985-05-09 | Gränges Nyby AB, Nybybruk | Verfahren zum Herstellen von Blechen und Bändern aus ferritischen, stabilisierten, rostfreien Chrom-Molybdän-Nickel-Stählen |
| US4255497A (en) * | 1979-06-28 | 1981-03-10 | Amax Inc. | Ferritic stainless steel |
| US4294613A (en) * | 1979-07-03 | 1981-10-13 | Henrik Giflo | Acid resistant, high-strength steel suitable for polishing |
| US4299621A (en) * | 1979-07-03 | 1981-11-10 | Henrik Giflo | High mechanical strength reinforcement steel |
| SE436576C (sv) * | 1980-01-03 | 1987-03-16 | Allegheny Ludlum Steel | Ferritiskt rostfritt stal och anvendning av dylikt |
| US4456483A (en) * | 1980-01-03 | 1984-06-26 | Allegheny Ludlum Steel Corporation | Ferritic stainless steel |
| US4456482A (en) * | 1980-01-03 | 1984-06-26 | Allegheny Ludlum Steel Corporation | Ferritic stainless steel |
| SE436577B (sv) * | 1980-01-03 | 1985-01-07 | Allegheny Ludlum Steel | Ferritiskt rostfritt stal och anvendning av dylikt |
| JPS56123356A (en) * | 1980-03-01 | 1981-09-28 | Nippon Steel Corp | Ferritic stainless steel with superior formability |
| JPS56160428U (nl) * | 1980-04-30 | 1981-11-30 | ||
| JPS6028968Y2 (ja) * | 1980-04-30 | 1985-09-03 | 富士通株式会社 | 出力直接選択型インタフェィス回路 |
| US4331474A (en) * | 1980-09-24 | 1982-05-25 | Armco Inc. | Ferritic stainless steel having toughness and weldability |
| DE3169748D1 (en) * | 1981-01-16 | 1985-05-09 | Allegheny Ludlum Steel | Low interstitial, corrosion resistant, weldable ferritic stainless steel and process for the manufacture thereof |
| JPS57126954A (en) * | 1981-01-29 | 1982-08-06 | Nisshin Steel Co Ltd | Corrosion-resistant ferritic stainless steel |
| DE3221087A1 (de) * | 1982-06-04 | 1983-12-08 | Thyssen Edelstahlwerke AG, 4000 Düsseldorf | Verfahren zur erzeugung und verarbeitung hochlegierter nichtrostender ferritischer chrom-molybdaen-nickel-staehle |
| US4832765A (en) * | 1983-01-05 | 1989-05-23 | Carpenter Technology Corporation | Duplex alloy |
| JPH0627303B2 (ja) * | 1985-07-24 | 1994-04-13 | 愛知製鋼株式会社 | 冷間鍛造用軟磁性ステンレス鋼 |
| FR2589482B1 (fr) * | 1985-11-05 | 1987-11-27 | Ugine Gueugnon Sa | Tole ou bande en acier ferritique inoxydable, en particulier pour systemes d'echappement |
| JPS6331535A (ja) * | 1986-07-23 | 1988-02-10 | Jgc Corp | 炭素析出抑止性含炭素化合物処理装置 |
| US4942922A (en) * | 1988-10-18 | 1990-07-24 | Crucible Materials Corporation | Welded corrosion-resistant ferritic stainless steel tubing having high resistance to hydrogen embrittlement and a cathodically protected heat exchanger containing the same |
| JP2696584B2 (ja) * | 1990-03-24 | 1998-01-14 | 日新製鋼株式会社 | 低温靭性，溶接性および耐熱性に優れたフエライト系耐熱用ステンレス鋼 |
| US5578265A (en) * | 1992-09-08 | 1996-11-26 | Sandvik Ab | Ferritic stainless steel alloy for use as catalytic converter material |
| US5393487A (en) * | 1993-08-17 | 1995-02-28 | J & L Specialty Products Corporation | Steel alloy having improved creep strength |
| US6582652B2 (en) * | 2001-05-11 | 2003-06-24 | Scimed Life Systems, Inc. | Stainless steel alloy having lowered nickel-chromium toxicity and improved biocompatibility |
| CA2777715C (en) * | 2006-05-09 | 2014-06-03 | Nippon Steel & Sumikin Stainless Steel Corporation | Ferritic stainless steel excellent in resistance to crevice corrosion |
| JP5042553B2 (ja) * | 2006-08-03 | 2012-10-03 | 新日鐵住金ステンレス株式会社 | 耐すきま腐食性、成形性に優れたフェライト系ステンレス鋼 |
| JP5390175B2 (ja) * | 2007-12-28 | 2014-01-15 | 新日鐵住金ステンレス株式会社 | ろう付け性に優れたフェライト系ステンレス鋼 |
| JP5462583B2 (ja) * | 2008-10-24 | 2014-04-02 | 新日鐵住金ステンレス株式会社 | Ｅｇｒクーラ用フェライト系ステンレス鋼板 |
| CN106011691B (zh) * | 2016-07-27 | 2018-07-03 | 东莞市闻誉实业有限公司 | 铝合金产品 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE974555C (de) | 1951-01-19 | 1961-02-09 | Electric Furnace Products Comp | Im Lichtbogen erschmolzener ferritischer Chromstahl |
| US3366263A (en) * | 1964-07-15 | 1968-01-30 | Allegheny Ludlum Steel | Hot water tank |
| FR2091642A5 (en) * | 1970-05-16 | 1972-01-14 | Nippon Steel Corp | Stainless steel resistant to pitting corrosion -and suitable for comp - used in sewater |
| US3929473A (en) * | 1971-03-09 | 1975-12-30 | Du Pont | Chromium, molybdenum ferritic stainless steels |
| DE2153186A1 (de) | 1971-10-26 | 1973-05-03 | Deutsche Edelstahlwerke Gmbh | Verwendung ferritischer chromstaehle als korrosionsbestaendiger werkstoff fuer den chemischen apparatebau |
| GB1359629A (en) * | 1971-10-26 | 1974-07-10 | Deutsche Edelstahlwerke Gmbh | Corrosion-resistant ferritic chrome steel |
| US3957544A (en) * | 1972-03-10 | 1976-05-18 | Crucible Inc. | Ferritic stainless steels |
| US3890143A (en) * | 1972-04-14 | 1975-06-17 | Nyby Bruk Ab | Welded constructions of stainless steels |
| US4055448A (en) * | 1973-04-10 | 1977-10-25 | Daido Seiko Kabushiki Kaisha | Ferrite-austenite stainless steel |
| US3992198A (en) * | 1973-06-21 | 1976-11-16 | E. I. Du Pont De Nemours & Company | Ductile chromium-containing ferritic alloys |
| US3963532A (en) * | 1974-05-30 | 1976-06-15 | E. I. Du Pont De Nemours And Company | Fe, Cr ferritic alloys containing Al and Nb |
| JPS5188413A (en) * | 1975-02-01 | 1976-08-03 | Kotaishokuseifueraitosutenresuko | |
| US4010049A (en) * | 1975-10-06 | 1977-03-01 | Jones & Laughlin Steel Corporation | Columbium-stabilized high chromium ferritic stainless steels containing zirconium |
| GB1565419A (en) * | 1976-04-27 | 1980-04-23 | Crucible Inc | Stainless steel welded articles |
| US4101347A (en) * | 1977-05-06 | 1978-07-18 | Daido Tokushuko Kabushiki Kaisha | Ferrite-austenite stainless steel castings having an improved erosion-corrosion resistance |
-
1977
- 1977-01-14 DE DE2701329A patent/DE2701329C2/de not_active Expired
-
1978
- 1978-01-10 GB GB912/78A patent/GB1546051A/en not_active Expired
- 1978-01-10 US US05/868,444 patent/US4155752A/en not_active Expired - Lifetime
- 1978-01-12 SE SE7800362A patent/SE439329B/sv not_active IP Right Cessation
- 1978-01-12 IT IT47618/78A patent/IT1155765B/it active
- 1978-01-13 AT AT0025478A patent/AT369435B/de not_active IP Right Cessation
- 1978-01-13 ES ES465968A patent/ES465968A1/es not_active Expired
- 1978-01-13 NL NL7800447A patent/NL7800447A/nl not_active Application Discontinuation
- 1978-01-13 FR FR7800887A patent/FR2377457B1/fr not_active Expired
- 1978-01-13 JP JP53003268A patent/JPS5941505B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2701329B1 (de) | 1977-12-22 |
| FR2377457B1 (fr) | 1985-09-06 |
| ES465968A1 (es) | 1978-09-16 |
| NL7800447A (nl) | 1978-07-18 |
| SE7800362L (sv) | 1978-07-15 |
| AT369435B (de) | 1982-12-27 |
| ATA25478A (de) | 1982-05-15 |
| IT1155765B (it) | 1987-01-28 |
| GB1546051A (en) | 1979-05-16 |
| JPS5941505B2 (ja) | 1984-10-08 |
| FR2377457A1 (fr) | 1978-08-11 |
| JPS5389816A (en) | 1978-08-08 |
| DE2701329C2 (de) | 1983-03-24 |
| IT7847618A0 (it) | 1978-01-12 |
| US4155752A (en) | 1979-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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