CN104479874A - Extraction equipment and extraction method of zanthoxylum bungeanum leaf aromatic oil - Google Patents

Extraction equipment and extraction method of zanthoxylum bungeanum leaf aromatic oil Download PDF

Info

Publication number
CN104479874A
CN104479874A CN201410603450.XA CN201410603450A CN104479874A CN 104479874 A CN104479874 A CN 104479874A CN 201410603450 A CN201410603450 A CN 201410603450A CN 104479874 A CN104479874 A CN 104479874A
Authority
CN
China
Prior art keywords
oil
zanthoxylum bungeanum
zanthoxyli bungeani
extraction equipment
solvent oil
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.)
Pending
Application number
CN201410603450.XA
Other languages
Chinese (zh)
Inventor
冯敏杰
冯丽娜
强建国
冯少鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANCHENG QINLONG CHINESE PRICKLY ASH SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
HANCHENG QINLONG CHINESE PRICKLY ASH SCIENCE & TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HANCHENG QINLONG CHINESE PRICKLY ASH SCIENCE & TECHNOLOGY Co Ltd filed Critical HANCHENG QINLONG CHINESE PRICKLY ASH SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201410603450.XA priority Critical patent/CN104479874A/en
Publication of CN104479874A publication Critical patent/CN104479874A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B9/00Essential oils; Perfumes
    • C11B9/02Recovery or refining of essential oils from raw materials
    • C11B9/025Recovery by solvent extraction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Fats And Perfumes (AREA)

Abstract

The present invention relates to a zanthoxylum bungeanum leaf aromatic oil extraction equipment extraction method, wherein vegetable oil extraction equipment is purchased or produced and installed, dried zanthoxylum bungeanum leaves are purchased or fresh zanthoxylum bungeanum leaves are purchased and are dried in the sun, crushing is performed with a 30 mesh screen crusher, the crushed material and a proper amount of a solvent oil are mixed, the obtained material is added to the vegetable oil extraction equipment, and the zanthoxylum bungeanum leaf aromatic oil is extracted. The zanthoxylum bungeanum leaf aromatic oil extraction method comprises six steps such as vegetable oil extraction equipment production and installation, dried zanthoxylum bungeanum leaf purchasing, crushing and storage, petroleum ether solvent oil purchasing and storage, zanthoxylum bungeanum leaf aromatic oil crude oil extracting, petroleum ether solvent oil recovering, and zanthoxylum bungeanum leaf aromatic oil precipitation, filtration and package. According to the present invention, the aged zanthoxylum bungeanum bud leaves or the bud leaves of the fruit-picked zanthoxylum bungeanum are collected and purchased to extract the zanthoxylum bungeanum leaf aromatic oil, and the zanthoxylum bungeanum leaf aromatic oil is used for development and processing of aromatic food, beverages, health care products, cosmetic products and other aromatic health products, such that the great resources are provided, the resources are converted into the product and economy income, and the enterprise development and the farmer income increase are promoted.

Description

Folium Zanthoxyli Bungeani perfume oil extraction equipment and extracting method
Art
Folium Zanthoxyli Bungeani perfume oil extraction equipment of the present invention and extracting method relate to vegetables oil manufacture field, particularly relate to the complete processing utilizing Folium Zanthoxyli Bungeani to extract vegetables oil.
Background technology
Zanthoxylum Rutaceae dungarunga or shrub plant, the pericarp after its fruit dries is one of eight large seasonings.Hancheng is the national maximum Chinese prickly ash place of production, and about 2.5 ten thousand tons, Chinese prickly ash produced per year by more than 50 ten thousand mu, Chinese prickly ash of planting, and produces about 100,000 tons, fresh pepper leaf simultaneously.Research and analyse result through relevant R&D institution to show; Chinese prickly ash bud-leaf contains the valuable perfume oil composition such as myrcene, terpinene; homoamino acid (24.4%) nutritive ingredient; flavones, Polyphenols health-care components and herbal function; there is immunity moderation, neuroprotective cell, anti-inflammatory, antiviral, antimutagenic, antitumor, antisenility function, can be used as the important source material of processing aromatise foods, condiment, essence and flavoring agent.So valuable huge resource, for a long time when refuse is discarded, this gives me company's development, process for processing Folium Zanthoxyli Bungeani perfume oil, fragrant food, beverage, healthcare products, cosmetics of everyday use etc. provide huge resource, be product and income by resource conversion, can promoting enterprise development and increasing peasant income.
Technical scheme
The object of this invention is: gather, purchase old and feeble Chinese pricklyash bud-leaf, or the Chinese pricklyash bud-leaf after fruit harvesting, extract Folium Zanthoxyli Bungeani perfume oil, for fragrant health care product development and processing such as fragrant food, beverage, healthcare products, cosmeticses of everyday use, provide huge resource, be product and income by resource conversion, can promoting enterprise development and increasing peasant income.
To achieve these goals, the technical solution used in the present invention is: purchase or fabrication and installation vegetables oil extraction equipment, then purchases dry Folium Zanthoxyli Bungeani or fresh pepper leaf dries, after pulverizing with 30 eye mesh screen pulverizers, mix with appropriate solvent oil, add vegetables oil extraction equipment, extract Folium Zanthoxyli Bungeani perfume oil.Folium Zanthoxyli Bungeani perfume oil extracting method, is divided into the fabrication and installation of vegetables oil extraction equipment, dry Folium Zanthoxyli Bungeani buying pulverizing is stocked, the buying of petroleum ether solvent oil is stocked, the extraction of Folium Zanthoxyli Bungeani perfume oil crude oil, petroleum ether solvent recovery of oil, Folium Zanthoxyli Bungeani perfume oil analyses layer and filter and package six procedures.Its concrete processing extraction technique is: first purchase or fabrication and installation vegetables oil extraction equipment; Folium Zanthoxyli Bungeani perfume oil extraction equipment is evaporated heating unit, solvent oil evaporating separation device, condensing works, solvent oil retrieving arrangement and support seven part formed by perfume oil leaching device, extract filtration unit, solvent oil; Perfume oil leaching device is made up of loading hopper 1, perfume oil batch extractor 2 liang of parts; The filter sieve 15 that extract filtration unit is 200 eye mesh screens by bottom forms; Solvent oil evaporation heating unit is made up of electric heat water tank 6, hot water pump 7, electromagnetic heating stove 8, heating water tank water-in 9, heating water tank water return outlet 5, circular heating water tank 18, heating water tank hot water 22 7 parts; The garden cylinder 16 that solvent oil evaporating separation device installs oil discharging valve by periphery hot water tank 18, bottom forms; Condensing works is evaporated gas transfer lime 10 5 parts formed by drainer 12, drainer spiral condensing tube 13, drainer water-in 14, drainer water outlet 11, solvent oil; Solvent oil retrieving arrangement is made up of the garden cylinder 17 that oil discharging valve is installed in bottom, drainer 12 is installed on top; Perfume oil extraction equipment support is two-layer planar bracket, and upper strata planar bracket installs perfume oil leaching device, and other device is all arranged on lower floor's planar bracket, and above-mentioned whole device reasonable installation is combined, and can carry out the extraction of Folium Zanthoxyli Bungeani perfume oil.Purchase dry Folium Zanthoxyli Bungeani again or fresh pepper leaf dries, after pulverizing with 30 eye mesh screen pulverizers, purchase appropriate petroleum ether solvent oil measure standby, when processing is extracted, get appropriate petroleum ether solvent oil to mix stir evenly with the Folium Zanthoxyli Bungeani after pulverizing, through vegetables oil extraction equipment batch extractor loading hopper 1, add vegetables oil extraction equipment batch extractor 2, stir in leaching process discontinuous, after leaching through 1-2 days, mixing extract is put into 200 order filter sieve 15 filter and remove residues, again the mixing oil after filter and remove residue is put into solvent oil evaporation separating tank, petroleum ether solvent oil 16 is separated with hot water heating evaporation, solvent oil evaporation gas enters condenser condenses through pipeline 10 and becomes solvent oil liquid 12, the solvent oil being condensed into liquid flows into solvent oil withdrawing can 17 sealed type storage.Obtain the Fructus Zanthoxyli oil crude oil in solvent oil evaporation separating tank, Folium Zanthoxyli Bungeani perfume oil crude oil is stored in refrigerating chamber, control temperature 0-15 DEG C, obtain Folium Zanthoxyli Bungeani perfume oil processed oil package storage through 15 days after refrigeration sedimentation and filtration.
The invention has the beneficial effects as follows: gather, purchase old and feeble Chinese pricklyash bud-leaf, or the Chinese pricklyash bud-leaf after fruit harvesting, shine dry grinding storage.Purchase or fabrication and installation vegetables oil extraction equipment, by for a long time when a large amount of Folium Zanthoxyli Bungeani that refuse is discarded, extract Folium Zanthoxyli Bungeani perfume oil, turn waste into wealth, can be used for fragrant health care product development and the processing such as fragrant food, beverage, healthcare products, cosmetics of everyday use, providing huge resource, is product and income by resource conversion, can promoting enterprise development and increasing peasant income.
Accompanying drawing explanation
Fig. 1 is Folium Zanthoxyli Bungeani perfume oil extraction equipment front elevation, and Fig. 2 is along Figure 1A-A line perfume oil solvent evaporation separating tank cross sectional plan view.
In accompanying drawing: 1 loading hopper; 2 perfume oil batch extractors; 3 perfume oil batch extractor valves; 4 perfume oil extraction equipment supports; 5 heating water tank water return outlets; 6 electric heat water tanks; 7 hot water pumps; 8 electromagnetic heating stoves; 9 heating water tank water-ins; 10 solvent oil vaporised gas transfer limes; 11 drainer water outlets; 12 drainers; 13 drainer spiral condensing tubes; 14 drainer water-ins; 15 perfume oil filter sieve; 16 solvent oil evaporating pots; 17 solvent oil withdrawing cans; 18 solvent oil evaporating pot water heating baths; 19 mixing extract signals; Perfume oil signal after 20 filtrations; 21 recovered solvent oil signals; 22 heating water tank hot water signals.
Embodiment
1, Folium Zanthoxyli Bungeani perfume oil extraction equipment fabrication and installation:
Folium Zanthoxyli Bungeani perfume oil extraction equipment is evaporated heating unit, solvent oil evaporating separation device, condensing works, solvent oil retrieving arrangement and support seven part formed by perfume oil leaching device, extract filtration unit, solvent oil; Perfume oil leaching device is made up of loading hopper 1, perfume oil batch extractor 2 liang of parts; The filter sieve 15 that extract filtration unit is 200 eye mesh screens by bottom forms; Solvent oil evaporation heating unit is made up of electric heat water tank 6, hot water pump 7, electromagnetic heating stove 8, heating water tank water-in 9, heating water tank water return outlet 5, circular heating water tank 18, heating water tank hot water 22 7 parts; The garden cylinder 16 that solvent oil evaporating separation device installs oil discharging valve by periphery hot water tank 18, bottom forms; Condensing works is evaporated gas transfer lime 10 5 parts formed by drainer 12, drainer spiral condensing tube 13, drainer water-in 14, drainer water outlet 11, solvent oil; Solvent oil retrieving arrangement is made up of the garden cylinder 17 that oil discharging valve is installed in bottom, drainer 12 is installed on top; Perfume oil extraction equipment support is two-layer planar bracket, and upper strata planar bracket installs perfume oil leaching device, and other device is all arranged on lower floor's planar bracket, and above-mentioned whole device reasonable installation is combined, and can carry out the extraction of Folium Zanthoxyli Bungeani perfume oil.
2, dry Folium Zanthoxyli Bungeani buying pulverizing or the dry grinding of fresh pepper leaf purchase sieve are stocked.
3, the buying of petroleum ether solvent oil is stocked.
4, Folium Zanthoxyli Bungeani perfume oil crude oil extracts:
When the processing of Folium Zanthoxyli Bungeani perfume oil crude oil is extracted, get appropriate petroleum ether solvent oil to mix stir evenly with the Folium Zanthoxyli Bungeani after pulverizing, through vegetables oil extraction equipment batch extractor loading hopper 1, add vegetables oil extraction equipment batch extractor 2, stir in leaching process discontinuous, after leaching through 1-2 days, mixing extract is put into 200 order filter sieve 15 filter and remove residues, obtain Folium Zanthoxyli Bungeani perfume oil and petroleum ether solvent mixing oil.After mixing oil heating evaporation, obtain Folium Zanthoxyli Bungeani perfume oil crude oil.
5, solvent oil reclaims: the mixing oil after filter and remove residue is put into solvent oil evaporation separating tank, separating tank is evaporated with hot water heating, petroleum ether solvent oil is made to be evaporated to gas, enter drainer 12 through pipeline 10 and be condensed into solvent oil liquid, the solvent oil being condensed into liquid flows into solvent oil withdrawing can 17 sealed type storage.
6, Folium Zanthoxyli Bungeani perfume oil is analysed layer and is filtered and packaged: obtain the Fructus Zanthoxyli oil crude oil in solvent oil evaporation separating tank, Folium Zanthoxyli Bungeani perfume oil crude oil is stored in refrigerating chamber, control temperature 0-15 DEG C, obtained Folium Zanthoxyli Bungeani perfume oil processed oil package storage through 15 days after refrigeration sedimentation and filtration.

Claims (2)

  1. A kind of Folium Zanthoxyli Bungeani perfume oil extraction equipment and extracting method, is characterized in that:
    1. Folium Zanthoxyli Bungeani perfume oil leaching device is made up of loading hopper Fig. 1, perfume oil batch extractor Fig. 2 two parts; Filter sieve Figure 15 that extract filtration unit is 200 eye mesh screens by bottom forms; Solvent oil evaporation heating unit is made up of electric heat water tank Fig. 6, hot water pump Fig. 7, electromagnetic heating stove Fig. 8, heating water tank water-in Fig. 9, heating water tank water return outlet Fig. 5, circular heating water tank Figure 18, heating water tank hot water Figure 22 seven parts; The garden sketch drawing 16 that solvent oil evaporating separation device installs oil discharging valve by periphery hot water tank Figure 18, bottom forms; Condensing works is evaporated gas transfer lime Figure 10 five parts formed by drainer Figure 12, drainer spiral condensing tube Figure 13, drainer water-in Figure 14, drainer water outlet Figure 11, solvent oil; Solvent oil retrieving arrangement is made up of the garden sketch drawing 17 that oil discharging valve is installed in bottom, drainer Figure 12 is installed on top; Perfume oil extraction equipment support is two-layer planar bracket, and upper strata planar bracket installs perfume oil leaching device, and other device is all arranged on lower floor's planar bracket, and above-mentioned whole device reasonable installation is combined, and can carry out the extraction of Folium Zanthoxyli Bungeani perfume oil.
  2. 2. Folium Zanthoxyli Bungeani perfume oil extracting method, on the basis installing Folium Zanthoxyli Bungeani perfume oil extraction equipment, then purchases dry Folium Zanthoxyli Bungeani or fresh pepper leaf dries, and pulverizes stock with 30 eye mesh screen pulverizers.Purchase appropriate petroleum ether solvent oil measure standby, when processing is extracted, get appropriate petroleum ether solvent oil to mix stir evenly with the Folium Zanthoxyli Bungeani after pulverizing, through vegetables oil extraction equipment batch extractor loading hopper Fig. 1, add vegetables oil extraction equipment batch extractor Fig. 2, stir in leaching process discontinuous, after leaching through 1-2 days, mixing extract is put into 200 order filter sieve filter and remove residue Figure 15, again the mixing oil after filter and remove residue is put into solvent oil evaporation separating tank, petroleum ether solvent oil Figure 16 is separated with hot water heating evaporation, solvent oil evaporation gas enters drainer Figure 12 through pipeline Figure 10 and is condensed into solvent oil liquid, the solvent oil being condensed into liquid flows into solvent oil withdrawing can Figure 17 sealed type storage.Obtain the Folium Zanthoxyli Bungeani perfume oil crude oil in solvent oil evaporation separating tank, Folium Zanthoxyli Bungeani perfume oil crude oil is stored in refrigerating chamber, control temperature 0-15 DEG C, obtain Folium Zanthoxyli Bungeani perfume oil processed oil package storage through 15 days after refrigeration sedimentation and filtration.
CN201410603450.XA 2014-10-25 2014-10-25 Extraction equipment and extraction method of zanthoxylum bungeanum leaf aromatic oil Pending CN104479874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410603450.XA CN104479874A (en) 2014-10-25 2014-10-25 Extraction equipment and extraction method of zanthoxylum bungeanum leaf aromatic oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410603450.XA CN104479874A (en) 2014-10-25 2014-10-25 Extraction equipment and extraction method of zanthoxylum bungeanum leaf aromatic oil

Publications (1)

Publication Number Publication Date
CN104479874A true CN104479874A (en) 2015-04-01

Family

ID=52754484

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410603450.XA Pending CN104479874A (en) 2014-10-25 2014-10-25 Extraction equipment and extraction method of zanthoxylum bungeanum leaf aromatic oil

Country Status (1)

Country Link
CN (1) CN104479874A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104946400A (en) * 2015-07-02 2015-09-30 济南大学 Spice oil extracting device
CN105368567A (en) * 2015-11-25 2016-03-02 四川麻辣空间食品有限公司 Chinese prickly ash oil production device and production method
CN109645146A (en) * 2019-01-31 2019-04-19 四川省农业科学院农产品加工研究所 A method of Zanthoxylum essential oil is prepared with bunge pricklyash leaf
CN110358630A (en) * 2019-06-25 2019-10-22 河南中烟工业有限责任公司 A kind of clear spicy tobacco aromaticss, preparation method and the application in cigarette

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1032953A (en) * 1987-10-31 1989-05-17 中国科学院广州化学研究所 The straight run distillation cinnamon leaf extracts oil of bay
CN1169257A (en) * 1996-06-28 1998-01-07 四川省汉源县花椒油厂 Technology and apparatus for preparing pepper oil
CN101768509A (en) * 2010-02-10 2010-07-07 广西壮族自治区分析测试研究中心 Portable device for extracting aromatic oil
CN201840670U (en) * 2010-09-19 2011-05-25 北京东方诚益通工业自动化技术有限公司 Novel multifunctional dynamic extraction machine
CN201864712U (en) * 2010-10-27 2011-06-15 云南宝泰轻化机械有限公司 Efficient continuous phytoextraction device
CN104099181A (en) * 2014-07-08 2014-10-15 韩城市秦龙花椒科技有限责任公司 Method for extracting aromatic oil from Chinese prickly ash shoots

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1032953A (en) * 1987-10-31 1989-05-17 中国科学院广州化学研究所 The straight run distillation cinnamon leaf extracts oil of bay
CN1169257A (en) * 1996-06-28 1998-01-07 四川省汉源县花椒油厂 Technology and apparatus for preparing pepper oil
CN101768509A (en) * 2010-02-10 2010-07-07 广西壮族自治区分析测试研究中心 Portable device for extracting aromatic oil
CN201840670U (en) * 2010-09-19 2011-05-25 北京东方诚益通工业自动化技术有限公司 Novel multifunctional dynamic extraction machine
CN201864712U (en) * 2010-10-27 2011-06-15 云南宝泰轻化机械有限公司 Efficient continuous phytoextraction device
CN104099181A (en) * 2014-07-08 2014-10-15 韩城市秦龙花椒科技有限责任公司 Method for extracting aromatic oil from Chinese prickly ash shoots

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
《林业概论》编写组: "《林业概论下册(森工部分)》", 30 September 1994, 中国林业出版社 *
南京林学院树木提炼物工艺学教研组: "《树木提炼物工艺学》", 31 July 1961, 农业出版社 *
彭宏: "《特种经济作物栽培技术》", 30 September 2010, 化学工业出版社 *
杨向光: "常温提取植物原液和分离有效成分的方法", 《林业化工通讯》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104946400A (en) * 2015-07-02 2015-09-30 济南大学 Spice oil extracting device
CN105368567A (en) * 2015-11-25 2016-03-02 四川麻辣空间食品有限公司 Chinese prickly ash oil production device and production method
CN109645146A (en) * 2019-01-31 2019-04-19 四川省农业科学院农产品加工研究所 A method of Zanthoxylum essential oil is prepared with bunge pricklyash leaf
CN110358630A (en) * 2019-06-25 2019-10-22 河南中烟工业有限责任公司 A kind of clear spicy tobacco aromaticss, preparation method and the application in cigarette

Similar Documents

Publication Publication Date Title
CN101928642B (en) Method for extracting and separating spice and medicinal components from whole plants of Dendranthema indicum
CN104479874A (en) Extraction equipment and extraction method of zanthoxylum bungeanum leaf aromatic oil
CN109504540A (en) A kind of agilawood essential oil extracting method
CN102919422B (en) Process for extracting herbal tea concentrate
CN102442916A (en) Method for extracting natural activated products from orange drops
CN102453601B (en) Extraction method of Cinnamomum camphora seed oil by ultrasound-assisted compound enzyme
CN103484238A (en) Method for extracting cibora jadalna oil by supercritical carbon dioxide
CN102586004A (en) Method for continuously extracting orange oil and limonin from citrus reticulata
CN102040579A (en) Method for extracting luteolin from peanut roots, stems, leaves and shells
CN105622777A (en) Technology for extracting pectin from premna microphylla turca
CN101671371B (en) Method for extracting flavonoid compound from onion skins
CN102041165B (en) Ginseng oil and extraction method thereof
CN109054997A (en) A method of isolating and purifying phytosterol from seabuckthorn seeds
CN105886121A (en) Preparation method of high-quality citrus essential oil
CN102206550A (en) Method for preparing osmanthus concrete and osmanthus total flavonoid through enzyme hydrolysis technology
CN108546304A (en) A method of preparing poly- arabogalactan aldehydic acid using dried orange peel
CN105232731A (en) Method for extracting total flavonoids from litchi shells
CN103087827B (en) Comprehensive extraction method using novel multifunctional tank
CN108587791A (en) Method for extracting shaddock peel essential oil, shaddock seed oil and limonoid from shaddock
CN102061219A (en) Method for extracting tea seed oil
CN102276455B (en) Method for extracting effective ingredients from dry cinnamomum burmannii fruits
CN103239546A (en) Method for extracting general flavone from litchi shells
CN104000935A (en) Method for extracting anti-oxidative phenolic acids from potato peel slag
CN104560397A (en) Ginger oil extraction process
CN105670797A (en) Bergamot essential oil extraction method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150401