CN1297646C - 中性除油除锈清洗剂 - Google Patents
中性除油除锈清洗剂 Download PDFInfo
- Publication number
- CN1297646C CN1297646C CNB031467679A CN03146767A CN1297646C CN 1297646 C CN1297646 C CN 1297646C CN B031467679 A CNB031467679 A CN B031467679A CN 03146767 A CN03146767 A CN 03146767A CN 1297646 C CN1297646 C CN 1297646C
- Authority
- CN
- China
- Prior art keywords
- acid
- degreasing
- rust removal
- neutral detergent
- rust
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 230000007935 neutral effect Effects 0.000 title claims abstract description 17
- 239000012459 cleaning agent Substances 0.000 title description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 39
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 10
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229940120146 EDTMP Drugs 0.000 claims abstract description 5
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 5
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 5
- 235000017550 sodium carbonate Nutrition 0.000 claims abstract description 5
- 229920002125 Sokalan® Polymers 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 3
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims abstract description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 3
- 239000004584 polyacrylic acid Substances 0.000 claims abstract 2
- 238000005238 degreasing Methods 0.000 claims description 21
- 239000003599 detergent Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- VPTUPAVOBUEXMZ-UHFFFAOYSA-N (1-hydroxy-2-phosphonoethyl)phosphonic acid Chemical compound OP(=O)(O)C(O)CP(O)(O)=O VPTUPAVOBUEXMZ-UHFFFAOYSA-N 0.000 claims description 5
- -1 phospho Chemical class 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 2
- JBJWASZNUJCEKT-UHFFFAOYSA-M sodium;hydroxide;hydrate Chemical compound O.[OH-].[Na+] JBJWASZNUJCEKT-UHFFFAOYSA-M 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 16
- 239000007788 liquid Substances 0.000 abstract description 14
- 238000005260 corrosion Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 7
- 239000004094 surface-active agent Substances 0.000 abstract description 6
- 150000003839 salts Chemical class 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000002738 chelating agent Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 abstract 3
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 abstract 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 2
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 abstract 1
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
- 230000002000 scavenging effect Effects 0.000 description 9
- 238000002161 passivation Methods 0.000 description 6
- 239000013543 active substance Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003352 sequestering agent Substances 0.000 description 3
- 238000010186 staining Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 150000003003 phosphines Chemical class 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Detergent Compositions (AREA)
Abstract
Description
外观 | PH值 | 密度(g/cm3) | 挥发物 |
透明浅棕色液体 | 6.5~7.5 | 1.10 | 无 |
材质 | 碳钢 | 黄铜 | 紫铜 | 不锈钢 | 纯铝 |
腐蚀率(g/m2·h) | <0.80 | <0.05 | <0.04 | <0.008 | <0.09 |
备注 | 条件:40℃,10hr |
锈蚀程度 | 浮锈 | 轻度锈蚀 | 中度锈蚀 |
除锈效果 | 完全 | 完全 | 完全 |
除油效果 | 防锈油脂去除>98% | ||
备注 | 条件:40℃,10hr |
材质 | 碳钢 | 不锈钢 | 纯铝 |
腐蚀率(g/m2·h) | 0.65 | 0.008 | 0.09 |
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB031467679A CN1297646C (zh) | 2003-06-25 | 2003-06-25 | 中性除油除锈清洗剂 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB031467679A CN1297646C (zh) | 2003-06-25 | 2003-06-25 | 中性除油除锈清洗剂 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1566307A CN1566307A (zh) | 2005-01-19 |
CN1297646C true CN1297646C (zh) | 2007-01-31 |
Family
ID=34471850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031467679A Expired - Fee Related CN1297646C (zh) | 2003-06-25 | 2003-06-25 | 中性除油除锈清洗剂 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1297646C (zh) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101768746B (zh) * | 2008-12-31 | 2011-07-20 | 中国蓝星(集团)股份有限公司 | 一种不锈钢专用清洗剂及其制备方法和应用 |
CN102021099A (zh) * | 2009-09-21 | 2011-04-20 | 邵阳市创捷化工有限公司 | 专用于液压管道清洗循环清洗剂及其生产方法 |
CN102041517B (zh) * | 2009-10-13 | 2014-12-10 | 北京中科三环高技术股份有限公司 | 用于永磁材料的水溶性无磷除油剂 |
CN101760345B (zh) * | 2010-01-15 | 2012-01-25 | 扬州工业职业技术学院 | 一种内燃机用积炭清洗剂 |
CN102134723A (zh) * | 2011-01-24 | 2011-07-27 | 朱建清 | 一种中性除油除锈剂 |
CN102351568B (zh) * | 2011-08-04 | 2012-12-26 | 重庆市兴渝高分子涂料有限公司 | 除酸碱底液 |
CN104629937A (zh) * | 2015-01-29 | 2015-05-20 | 无锡昊瑜节能环保设备有限公司 | 一种环保清洗剂 |
CN105802755B (zh) * | 2016-04-15 | 2019-01-15 | 福建省纯杰绿色科技有限公司 | 一种多功能高效环保重油污洗涤剂 |
CN106381496A (zh) * | 2016-09-06 | 2017-02-08 | 天津科技大学 | 中性除锈防锈剂及制备方法和实施工艺 |
CN106521521A (zh) * | 2016-12-29 | 2017-03-22 | 柳州市凯夕贸易有限公司 | 一种铜制品除锈剂及其制备方法 |
CN107267970B (zh) * | 2017-07-09 | 2019-08-27 | 无锡市恒利弘实业有限公司 | 一种钢制件水性环保防锈剂及其制备方法和应用 |
CN107446729A (zh) * | 2017-08-01 | 2017-12-08 | 安徽华翎羽毛制品有限公司 | 一种羽毛球羽毛用高效清洁剂 |
CN107629889A (zh) * | 2017-08-30 | 2018-01-26 | 安徽省德邦瓷业有限公司 | 一种日用陶瓷施釉坯体擦底海绵清洗液 |
CN108004033A (zh) * | 2017-11-30 | 2018-05-08 | 钱小平 | 高效管道用除垢剂 |
CN107964663A (zh) * | 2017-11-30 | 2018-04-27 | 中新康吉环保科技(天津)有限公司 | 一种湿式抛钢砂连续高速处理钢板工艺用环保型金属清洁剂及其制备方法和应用 |
CN108004559A (zh) * | 2017-12-25 | 2018-05-08 | 三达奥克化学股份有限公司 | 环保型中性除锈除氧化皮溶液及制备方法 |
CN108411317A (zh) * | 2018-04-12 | 2018-08-17 | 安徽斯戴新材料有限公司 | 一种咪唑类中性除锈剂 |
CN108531316A (zh) * | 2018-05-15 | 2018-09-14 | 山东理工职业学院 | 一种环保型化工设备去污剂 |
CN108677200A (zh) * | 2018-06-13 | 2018-10-19 | 上海理工大学 | 一种黄铜合金环保除锈剂 |
KR20200077912A (ko) * | 2018-12-21 | 2020-07-01 | 주식회사 케이씨텍 | 세정액 조성물 및 그것을 이용한 세정 방법 |
CN109487285A (zh) * | 2018-12-28 | 2019-03-19 | 湖北博新材料保护有限公司 | 一种契合涂装前处理生产节拍用中性除油除锈清洗剂及制备方法 |
CN111254447B (zh) * | 2020-03-24 | 2022-05-20 | 太仓市宝马环境工程有限公司 | 一种中性除锈钝化清洗剂及其使用方法 |
CN112553011A (zh) * | 2020-12-08 | 2021-03-26 | 广西蒲公英环保科技有限公司 | 一种用于钢铁厂高炉循环冷却水系统不停车清洗的清洗剂 |
CN112522036A (zh) * | 2020-12-10 | 2021-03-19 | 深圳市恒纬祥科技有限公司 | 一种压铸铝脱模剂清洗剂 |
CN112877704A (zh) * | 2021-01-13 | 2021-06-01 | 厦门腾兴隆化工有限公司 | 一种环保除油剂及其制备方法 |
CN114836761B (zh) * | 2022-03-21 | 2023-08-29 | 东营众悦石油科技有限公司 | 一种酸洗缓蚀剂及其制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2461612A1 (de) * | 1974-12-27 | 1976-07-01 | Hoechst Ag | Rostloesende reinigungsmittel sowie verfahren zu deren herstellung und deren verwendung |
CN1063908A (zh) * | 1991-02-04 | 1992-08-26 | 中国长江动力公司(集团)武汉汽轮发电机厂 | 除防锈钢铁表面处理液 |
CN1069528A (zh) * | 1991-08-13 | 1993-03-03 | 浙江工学院 | 除油除锈无渣常温磷化液 |
JPH0978270A (ja) * | 1995-09-13 | 1997-03-25 | Nippon Shohin Kaihatsu Kenkyusho:Kk | 除錆剤および除錆方法 |
CN1294204A (zh) * | 1999-11-02 | 2001-05-09 | 沈林华 | 多功能钢铁表面处理液 |
-
2003
- 2003-06-25 CN CNB031467679A patent/CN1297646C/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2461612A1 (de) * | 1974-12-27 | 1976-07-01 | Hoechst Ag | Rostloesende reinigungsmittel sowie verfahren zu deren herstellung und deren verwendung |
CN1063908A (zh) * | 1991-02-04 | 1992-08-26 | 中国长江动力公司(集团)武汉汽轮发电机厂 | 除防锈钢铁表面处理液 |
CN1069528A (zh) * | 1991-08-13 | 1993-03-03 | 浙江工学院 | 除油除锈无渣常温磷化液 |
JPH0978270A (ja) * | 1995-09-13 | 1997-03-25 | Nippon Shohin Kaihatsu Kenkyusho:Kk | 除錆剤および除錆方法 |
CN1294204A (zh) * | 1999-11-02 | 2001-05-09 | 沈林华 | 多功能钢铁表面处理液 |
Also Published As
Publication number | Publication date |
---|---|
CN1566307A (zh) | 2005-01-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1297646C (zh) | 中性除油除锈清洗剂 | |
CN101955863B (zh) | 硫酸钙垢中性清洗剂 | |
CN101864575B (zh) | 不锈钢设备专用清洗剂及其使用方法 | |
CN1006724B (zh) | 碱液清洗方法 | |
CN108623020A (zh) | 一种新型缓蚀阻垢剂及其制备方法与应用 | |
CN1850661A (zh) | 一种用于循环冷却水处理的绿色环保型复合缓蚀阻垢剂 | |
CN1063236C (zh) | 铝系金属的酸洗水溶液及其洗涤方法 | |
CN105174661A (zh) | 一种酸洗磷化废水处理工艺 | |
CN101817599A (zh) | 汽车水箱除垢清洗液及其制备方法 | |
CN1297640C (zh) | 三合一清洗剂 | |
CN101063199A (zh) | 锰系磷化液 | |
CN1140652C (zh) | 镁或镁合金的表面处理制品,表面预处理方法和涂装方法 | |
CN101899667B (zh) | 铝质设备专用清洗剂 | |
CN101880885B (zh) | 镀锌设备专用清洗剂及其使用方法 | |
CN102534641A (zh) | 一种有机酸清洗剂及其制造方法 | |
CN1243889A (zh) | 用于清洗铝基金属的洗涤水溶液及方法 | |
CN1060209C (zh) | 糖厂蒸发罐清洗液及清洗方法 | |
CN1300378C (zh) | 一种防蚀除锈剂及其制备方法与应用 | |
CN103756798A (zh) | 一种阴阳离子交换树脂清洗剂 | |
CN210314491U (zh) | 一种用于金属表面微观蚀刻的处理系统 | |
CN1678768A (zh) | 含铅的铜合金的降低铅溶出的处理方法及含铅的铜合金制的水管道用器具 | |
CN115537817A (zh) | 一种环保水基防锈剂及其制备方法和应用 | |
CN103433190B (zh) | 节能环保型金属工件预防腐方法 | |
CN108754509A (zh) | 多功能全效冷却水系统复合清洗剂 | |
CN1914124A (zh) | 脱盐水垢抑制剂 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: BLUESTAR ENVIRONMENTAL ENGINEERING CO., LTD. Free format text: FORMER NAME OR ADDRESS: BLUE STAR CLEANING ENGINEERING CO., LTD. |
|
CP03 | Change of name, title or address |
Address after: B District of Beijing City Industrial Development Zone, Anxiang Airport Road No. 5 Patentee after: Blue Star Environmental Engineering Co., Ltd. Address before: B District of Beijing City Industrial Development Zone, Anxiang Airport Road No. 5 Patentee before: Lanxing Cleaning Engineering Co., Ltd. |
|
ASS | Succession or assignment of patent right |
Owner name: BEIJING BLUESTAR TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BLUE STAR ENVIRONMENTAL ENGINEERING CO., LTD. Effective date: 20130305 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 101300 SHUNYI, BEIJING TO: 101318 SHUNYI, BEIJING |
|
TR01 | Transfer of patent right |
Effective date of registration: 20130305 Address after: 101318 Beijing city B District Shunyi District Tianzhu Airport Industrial Zone Anxiang Street No. 5 Patentee after: Beijing Bluestar Technology Co., Ltd. Address before: 101300 Beijing city B district airport industrial zone, Anxiang Road No. 5 Patentee before: Blue Star Environmental Engineering Co., Ltd. |
|
C56 | Change in the name or address of the patentee |
Owner name: BEIJING BLUESTAR WASHING CO., LTD. Free format text: FORMER NAME: BEIJING BLUESTAR TECHNOLOGY CO., LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: 101318 Beijing city B District Shunyi District Tianzhu Airport Industrial Zone Anxiang Street No. 5 Patentee after: BEIJING BLUESTAR CLEANING CO., LTD. Address before: 101318 Beijing city B District Shunyi District Tianzhu Airport Industrial Zone Anxiang Street No. 5 Patentee before: Beijing Bluestar Technology Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070131 Termination date: 20200625 |