CN202330277U - Portable ultraviolet spectrum flue gas analyzer - Google Patents
Portable ultraviolet spectrum flue gas analyzer Download PDFInfo
- Publication number
- CN202330277U CN202330277U CN2011204962233U CN201120496223U CN202330277U CN 202330277 U CN202330277 U CN 202330277U CN 2011204962233 U CN2011204962233 U CN 2011204962233U CN 201120496223 U CN201120496223 U CN 201120496223U CN 202330277 U CN202330277 U CN 202330277U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- communicated
- data processing
- ultraviolet spectrum
- portable ultraviolet
- 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
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a portable ultraviolet spectrum flue gas analyzer which is formed by communicating a flue gas acquisition main body with an air tap at the input end of a main workbox by a soft air pipe, wherein the flue gas acquisition main body mainly comprises a heat-resistant stainless steel tube and a thermoelectric couple. The portable ultraviolet spectrum flue gas analyzer is characterized in that the main workbox comprises a box body and an internal device; the internal device of the main workbox consists of a flue gas pretreatment device, a flue gas core analyzing assembly, a data processing and controlling device and a data outputting and displaying device; the flue gas pretreatment device is communicated with the air tap and the flue gas core analyzing assembly; the data processing and controlling device and the data outputting and displaying device are connected to the flue gas core analyzing assembly; the data processing and controlling device comprises a control panel and a data processing module; and a hardware core of the data processing and controlling device is CPU(Central Processing Unit)-LPC(Linear Power Controller)2214. According to the portable ultraviolet spectrum flue gas analyzer, the convenience and quickness for use are realized; measuring types are complete; the precision for measuring NO2 is increased; and the portable ultraviolet spectrum flue gas analyzer is an instrument which can realize continuous online measurement.
Description
Technical field
The utility model belongs to smog gas detection analysis field, is a kind of flue gas check and analysis device, particularly a kind of portable ultraviolet spectrum flue gas analyzer.
Background technology
The coal-burning boiler of industries such as present domestic cement mill, generating plant, main electrochemical gas analyser, the infrared spectrometric analyzer of adopting of the fume emission of gas fired-boiler monitoring, a small amount of ultraviolet spectrum analyzer.These instruments exist all generally that price comparison is expensive, volume is big, to the NO that answers the emphasis monitoring
2Low, the each test of gasmetry precision must be carried out defectives such as Zero calibration.
Portable ultraviolet spectrum flue gas analyzer is concentration and the discharge capacity that is used for measuring the specific gas in the stationary pollution source waste gas; Being the indispensable monitoring equipment of all types environmental monitoring mechanism, also is the necessary instrument that all kinds of industrial and mining enterprises realize energy-saving and emission-reduction, recycling waste gas.
The utility model content
The purpose of the utility model provide a kind of convenient to use, measure A wide selection of colours and designs, improve measuring N O
2Precision, can realize the instrument and equipment of continuous on-line measurement.
The content of the utility model is portable ultraviolet spectrum flue gas analyzer, and it is to be communicated with through soft air pipe with the input end valve of main work box by flue gas collection main body to constitute; Flue gas is gathered main body and is mainly comprised heat-resistance stainless steel pipe and thermopair; It is characterized in that: main work box comprises casing and interior arrangement, and main work box interior arrangement is exported by Flue Gas Pretreatment Device, flue gas core analysis assembly, data processing and control device and data and display device constitutes; The input end of Flue Gas Pretreatment Device is communicated with valve; Its output terminal is communicated with the input end of flue gas core analysis assembly; Flue gas core analysis assembly is connected with data processing and control device and data output and display device; The output terminal of flue gas core analysis assembly is communicated with the output terminal valve of main work box, and aspiration pump is housed; Flue Gas Pretreatment Device is communicated with successively by condenser, exsiccator and vacuum filter and constitutes; Data processing and control device comprise control panel and data processing module, and its hardware core is CPU-LPC2214; Data output and display device comprise lcd touch display screen, printer and USB interface.
Described flue gas core analysis assembly is by base and is fixed on ultraviolet source, U-shaped air chamber, spectrometer, CO sensor, the O on the base
2Sensor, sensor circuit board and flowmeter constitute; The two ends of U-shaped air chamber are communicated with ultraviolet source and spectrometer respectively, and are respectively equipped with valve at the two ends of U-shaped air chamber, and left valve is communicated with the output terminal of Flue Gas Pretreatment Device, right valve and CO sensor, O
2Sensor is communicated with successively, O
2Sensor is connected to aspiration pump and is communicated with the output terminal valve of main work box; Spectrometer is connected with data processing and control device.
The shell of described U-shaped air chamber has adopted aluminum pipe, embedded optical glass pipe, and condenser lens is arranged at an end that is communicated with spectrometer.
The hardware core CPU-LPC2214 of described data processing and control device is through usb bus and spectrometer swap data, it and CO sensor and O
2The ADC interface circuit input of the data of sensor through having expanded; Thermopair is provided with SPI interface circuit input hardware core CPU-LPC2214; The matrix keyboard interface circuit has designed 9 buttons, four key positions, a definite enter key and four function switch key control hardware core CPU-LPC2214; Gas flow and printer insert hardware core CPU-LPC2214 through having expanded the two serial port circuits of RS232.
Described main work box inside is divided into two-layer, and wherein one deck is built-in with the control circuit board and the aspiration pump of data processing and control device, and another layer is built-in with flue gas core analysis assembly, and the casing top of main work box is data output and display device.
Described aspiration pump is a membrane pump.
It is that the netted filtering head is communicated with the heat-resistance stainless steel pipe through web member that described flue gas is gathered main body; Thermopair and foregrip, back handle and handle core are arranged on the heat-resistance stainless steel pipe; The terminal outpacking rubber cover of heat-resistance stainless steel pipe has outer locking between foregrip and the back handle.
The characteristics of the utility model are: 1, this analyser compact conformation, volume is little, in light weight, is convenient for carrying measurement.Portable ultraviolet spectrum flue gas analyzer volume is less than with 2/3 of quasi-instrument, and quality is less than 50% of like product, and except that flue gas acquisition probe and printer, all the other equipment integrations have been abandoned the split type design defect of like product in same casing; Simultaneously, this instrument has adopted the touch LCD demonstration, can be real-time read measurement result, through touch-screen control, can read instant data, also can obtain average measurement value, realized real portable quick measurement.
2, this instrument measurable gaseous species is comparatively complete, five kinds of gases of on-line measurement simultaneously.This instrument measurable NO, NO
2, NH
3, SO
2, H
2S, CO, O
2Totally seven kinds of gases compared with similar products, have been accomplished a tractor serves several purposes.
3, improved NO
2Measuring accuracy.The ultraviolet flue gas analyzer adopts traditional DOAS algorithm, NO both at home and abroad
2Measuring accuracy be about 5%; The utility model adopts preferential frequency spectrum process of iteration and ultraviolet spectrometer (UVS) quantity method integral time, NO
2Measuring accuracy less than 2%.
4, can carry out the on-line continuous monitoring to the stationary pollution source discharged flue gas.The utility model is compared with conventional test methods, possesses advantages such as no signal decay, the restriction of no sensor life-time, no gas cross; Need not to demarcate before each the measurement, numeral mouthful output transmission can realize unattended surveillance.
Description of drawings
To combine embodiment that the utility model is further described below:
Fig. 1 is that the flue gas of portable ultraviolet spectrum flue gas analyzer is gathered the agent structure synoptic diagram;
Fig. 2 is the main work box structural representation of portable ultraviolet spectrum flue gas analyzer;
Fig. 3 is the flue gas core analysis modular construction synoptic diagram of portable ultraviolet spectrum flue gas analyzer;
Fig. 4 is the data processing work principle schematic of portable ultraviolet spectrum flue gas analyzer.
Among the figure: 1, netted filtering head; 2, web member; 3, heat-resisting tracheae; 4, thermopair; 5, foregrip; 6, outer locking; 7, back handle; 8, handle core; 9, rubber sleeve; 10, soft air pipe; 11, input valve; 12, condenser; 13, exsiccator; 14, vacuum filter; 15, wiring board; 16, aspiration pump; 17, flue gas analysis core component; 18, escape pipe; 19, ultraviolet source; 20, U-shaped air chamber; 21, spectrometer; 22, CO sensor; 23, O
2Sensor; 24, sensor circuit board; 25, flowmeter; 26, base; 27, left valve; 28, right valve.
Embodiment
As shown in Figure 1; It is that netted filtering head 1 is communicated with heat-resistance stainless steel pipe 3 through web member 2 that flue gas is gathered main body; Thermopair 4 and foregrip 5, back handle 7 and handle core 8 are arranged on the heat-resistance stainless steel pipe 3; Heat-resistance stainless steel pipe 3 terminal outpacking rubber covers 9 have outer locking 6 between foregrip 5 and the back handle 7.In the work, the flue gas of gathering be inhaled in the working machine after filtering through netted filtering head 1 is first, thermopair 4 obtains gas temperature simultaneously, flue gas gets into main work box through input valve 11.
As shown in Figure 2; The main work box of portable ultraviolet spectrum flue gas analyzer comprises casing and interior arrangement, and main work box interior arrangement is exported by Flue Gas Pretreatment Device, flue gas core analysis assembly 17, data processing and control device and data and display device constitutes.Data output and display device comprise lcd touch display screen, printer and USB interface.
Main work box left side is a Flue Gas Pretreatment Device, is communicated with successively by condenser 12, exsiccator 13 and vacuum filter 14 to constitute, and the input end of Flue Gas Pretreatment Device is communicated with valve 11, and output terminal is communicated with the input end left side valve 27 of flue gas core analysis assembly 17.Flue gas at first through condenser 12 coolings, through exsiccator 13 dehydrations, after vacuum filter 14 gets into U-shaped air chamber 20, has so far just been accomplished the flue gas pre-service again after input valve 11 gets into main work box.
Main work box right side is divided into two-layer, and wherein one deck is built-in with the control circuit board 15 and aspiration pump 16 of data processing and control device, and another layer is built-in with flue gas core analysis assembly 17, and the casing top of main work box is data output and display device.Gather flue gas after the analysis of flue gas analysis core component is accomplished, pump, discharge casing from outlet nozzle 18 through aspiration pump 16.
As shown in Figure 3, flue gas core analysis assembly 17 is by base 26 and is fixed on ultraviolet source 19, U-shaped air chamber 20, spectrometer 21, CO sensor 22, the O on the base 26
2 Sensor 23, sensor circuit board 24 and flowmeter 25 constitute; Carried out vibration isolation between base 26 and the casing and be connected, thereby guaranteed that the light signal in the whole core component work is stable, it is reliably accurate to analyze data.
The two ends of U-shaped air chamber 20 are communicated with ultraviolet source 19 and spectrometer 21 respectively, and are respectively equipped with valve at the two ends of U-shaped air chamber 20, and left valve 27 is communicated with the output terminal of Flue Gas Pretreatment Device, right valve 28 and CO sensor 22, O
2Sensor 23 is communicated with successively, O
2Sensor 23 is connected to aspiration pump 16 and is communicated with the output terminal valve 18 of main work box; Spectrometer 21 is connected with data processing and control device.
Behind the ultraviolet light collimation that ultraviolet source 19 sends; In U-shaped air chamber 20,, pass through lens focus again, get into spectrometer 21 through two secondary reflections; The data handling system of spectrometer can provide different data-signals according to different spectrum; These signals are transferred to the data processing circuit plate through data line, and through after the calculation process, LCDs will provide corresponding curve and data.When getting into U-shaped air chamber 20 through left valve 27 through pretreated flue gas; Spectrometer 21 will obtain and the corresponding spectral line of contained gas; Gas with various is different curve and the data of demonstration place on LCDs finally; If gas concentration changes, gas curve and percent concentration data thereof also can change.The flue gas that comes out from the right valve 28 of U-shaped air chamber 20 gets into CO sensor 22, gets into O again
2 Sensor 23 is pumped by aspiration pump 16 at last, discharges through outlet nozzle 18.Aspiration pump 16 has adopted membrane pump, has guaranteed that gas flow is constant, helps improving the precision of image data.U-shaped air chamber 20 shells have adopted aluminum pipe, and embedded special optical glass pipe has guaranteed that gas does not have delay in air chamber.Above-mentioned core component element all is contained on the base 26, has carried out vibration isolation between base 26 and the casing and has been connected, thereby guaranteed that the light signal in the whole core component work is stable, and it is reliably accurate to analyze data.
As shown in Figure 4; Data processing and control device comprise control panel and data processing module; Its hardware core is CPU-LPC2214; It is handled the spectroscopic data that spectrometer collects through usb bus and spectrometer swap data, will obtain gas ingredients and concentration then and show through color LCD output.Sensor circuit is measured O
2, CO gas gained data, through the ADC interface circuit input of having expanded; Thermopair is provided with the SPI interface circuit; The matrix keyboard interface circuit has designed 9 buttons, four key positions, a definite enter key and four function switch keys; Gas flow and printer connect through having expanded the two serial port circuits of RS232.On the algorithm, the differential optical absorption spectrum technology (DOAS) that traditional flue gas analyzer adopts disturbs precision to reduce because of receiving gas each other.The calculating principle of the utility model adopts preferred difference approximatioss: promptly according to the different absorption Spectrum characteristic of all gases; Select specific wave number; Repeatedly approach calculating with software for calculation; Through repeatedly value, iteration and computing, make the mushing error of each gas reduce to minimum, thereby obtain the high precision of measurement.
Claims (7)
1. portable ultraviolet spectrum flue gas analyzer, it is to gather main body by flue gas to be communicated with formation with the input end valve (11) of main work box through soft air pipe (10); Flue gas is gathered main body and is mainly comprised heat-resistance stainless steel pipe (3) and thermopair (4); It is characterized in that: main work box comprises casing and interior arrangement, and main work box interior arrangement is by Flue Gas Pretreatment Device, flue gas core analysis assembly (17), data processing and control device and data output and display device formation; The input end of Flue Gas Pretreatment Device is communicated with valve (11); Its output terminal is communicated with the input end of flue gas core analysis assembly (17); Flue gas core analysis assembly (17) is connected with data processing and control device and data output and display device; The output terminal of flue gas core analysis assembly (17) is communicated with the output terminal valve (18) of main work box, and aspiration pump (16) is housed; Flue Gas Pretreatment Device is communicated with formation successively by condenser (12), exsiccator (13) and vacuum filter (14); Data processing and control device comprise control panel and data processing module, and its hardware core is CPU-LPC2214; Data output and display device comprise lcd touch display screen, printer and USB interface.
2. according to the portable ultraviolet spectrum flue gas analyzer described in the claim 1, it is characterized in that: described flue gas core analysis assembly (17) is by base (26) and is fixed on ultraviolet source (19), U-shaped air chamber (20), spectrometer (21), CO sensor (22), the O on the base (26)
2Sensor (23), sensor circuit board (24) and flowmeter (25) constitute; The two ends of U-shaped air chamber (20) are communicated with ultraviolet source (19) and spectrometer (21) respectively, and are respectively equipped with valve at the two ends of U-shaped air chamber (20), and left valve (27) is communicated with the output terminal of Flue Gas Pretreatment Device, right valve (28) and CO sensor (22), O
2Sensor (23) is communicated with successively, O
2Sensor (23) is connected to aspiration pump (16) and is communicated with the output terminal valve (18) of main work box; Spectrometer (21) is connected with data processing and control device.
3. according to the portable ultraviolet spectrum flue gas analyzer described in the claim 2, it is characterized in that: the shell of described U-shaped air chamber (20) has adopted aluminum pipe, embedded optical glass pipe, and condenser lens is arranged at an end that is communicated with spectrometer (21).
4. according to the portable ultraviolet spectrum flue gas analyzer described in the claim 2, it is characterized in that: the hardware core CPU-LPC2214 of described data processing and control device is through usb bus and spectrometer (21) swap data, it and CO sensor (22) and O
2The ADC interface circuit input of the data of sensor (23) through having expanded; Thermopair (4) is provided with SPI interface circuit input hardware core CPU-LPC2214; The matrix keyboard interface circuit has designed 9 buttons, four key positions, a definite enter key and four function switch key control hardware core CPU-LPC2214; Gas flow and printer insert hardware core CPU-LPC2214 through having expanded the two serial port circuits of RS232.
5. according to the portable ultraviolet spectrum flue gas analyzer described in the claim 1; It is characterized in that: described main work box inside is divided into two-layer; Wherein one deck is built-in with the control circuit board (15) and the aspiration pump (16) of data processing and control device; Another layer is built-in with flue gas core analysis assembly (17), and the casing top of main work box is data output and display device.
6. according to the portable ultraviolet spectrum flue gas analyzer described in the claim 1, it is characterized in that: described aspiration pump (16) is a membrane pump.
7. according to the portable ultraviolet spectrum flue gas analyzer described in the claim 1; It is characterized in that: it is that netted filtering head (1) is communicated with heat-resistance stainless steel pipe (3) through web member (2) that described flue gas is gathered main body; Thermopair (4) and foregrip (5), back handle (7) and handle core (8) are arranged on the heat-resistance stainless steel pipe (3); The terminal outpacking rubber cover of heat-resistance stainless steel pipe (3) (9) has outer locking (6) between foregrip (5) and the back handle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204962233U CN202330277U (en) | 2011-12-04 | 2011-12-04 | Portable ultraviolet spectrum flue gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204962233U CN202330277U (en) | 2011-12-04 | 2011-12-04 | Portable ultraviolet spectrum flue gas analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330277U true CN202330277U (en) | 2012-07-11 |
Family
ID=46442255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204962233U Expired - Fee Related CN202330277U (en) | 2011-12-04 | 2011-12-04 | Portable ultraviolet spectrum flue gas analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330277U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466877A (en) * | 2016-01-12 | 2016-04-06 | 中绿环保科技股份有限公司 | Gas concentration measuring system in ultraviolet gas analyzer |
| CN107957405A (en) * | 2018-01-11 | 2018-04-24 | 太原海纳辰科仪器仪表有限公司 | A kind of portable infrared flue gas analyzer |
| CN108318437A (en) * | 2018-01-19 | 2018-07-24 | 中国科学院合肥物质科学研究院 | A kind of portable flue gas in-situ measurement system based on the adjustable how anti-pool technology of ultraviolet opening |
| CN109612529A (en) * | 2018-12-27 | 2019-04-12 | 广州市圣高测控科技有限公司 | A kind of measuring multiple parameters control pick-up wireless transmission integrated multi-functional instrument |
| CN109668772A (en) * | 2019-01-30 | 2019-04-23 | 杭州喜倍科技有限公司 | A kind of flue gas analyzer |
-
2011
- 2011-12-04 CN CN2011204962233U patent/CN202330277U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466877A (en) * | 2016-01-12 | 2016-04-06 | 中绿环保科技股份有限公司 | Gas concentration measuring system in ultraviolet gas analyzer |
| CN105466877B (en) * | 2016-01-12 | 2018-11-23 | 中绿环保科技股份有限公司 | Gas concentration measurement system in ultraviolet gas analyzer |
| CN107957405A (en) * | 2018-01-11 | 2018-04-24 | 太原海纳辰科仪器仪表有限公司 | A kind of portable infrared flue gas analyzer |
| CN108318437A (en) * | 2018-01-19 | 2018-07-24 | 中国科学院合肥物质科学研究院 | A kind of portable flue gas in-situ measurement system based on the adjustable how anti-pool technology of ultraviolet opening |
| CN109612529A (en) * | 2018-12-27 | 2019-04-12 | 广州市圣高测控科技有限公司 | A kind of measuring multiple parameters control pick-up wireless transmission integrated multi-functional instrument |
| CN109668772A (en) * | 2019-01-30 | 2019-04-23 | 杭州喜倍科技有限公司 | A kind of flue gas analyzer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202330277U (en) | Portable ultraviolet spectrum flue gas analyzer | |
| US6151952A (en) | System for mass emission sampling of combustion products | |
| CN201302565Y (en) | Tail gas analyzer for gasoline and diesel consumed vehicle | |
| CN102183468B (en) | Interference correction and concentration inversion method of multi-component gas analysis | |
| CN204439537U (en) | Based on the gas analyzer measurement mechanism of ultraviolet difference algorithm | |
| CN106770058A (en) | The quick special purpose device and its application method of the soil nitrate-N based on infrared spectrum | |
| CN203259519U (en) | Pollution source flue gas automatic monitoring system | |
| CN105572099A (en) | Laser Raman gas detection device based on concentric endoscope | |
| CN210894099U (en) | Flue gas on-line analyzer | |
| CN108535191B (en) | Laser Raman gas detection device based on rhombus cavity mirror | |
| CN101943658A (en) | Method for continuously monitoring water quality by combining principal component analysis theory and spectrum analysis technology | |
| CN108444972A (en) | A kind of laser gas Raman spectroscopic detection system based on capillary enhancing | |
| CN202421062U (en) | Ultraviolet analyzer for measuring sulfur dioxide and nitrogen oxides | |
| CN106872375A (en) | Formaldehyde tester, method of testing and calibration method | |
| CN202039929U (en) | Improved device for measuring pollutants from exhaust gas of non-road spark ignition engine | |
| CN105548139B (en) | A kind of LR laser raman gas detecting system that light path is closed based on intersection | |
| CN101625306B (en) | Device for measuring gas concentration | |
| KR20040080257A (en) | Apparatus and method for inspecting ingredient of gasoline using near infrared ray spectroscopy | |
| CN108535192A (en) | LR laser raman gas-detecting device based on Multi-path proportional detection | |
| CN206292156U (en) | A kind of flue gas analyzer | |
| CN213455605U (en) | Continuous monitoring system for smoke emission | |
| CN209559311U (en) | A kind of flow inspection, calibrating installation | |
| CN108459005A (en) | A kind of laser gas Raman spectrum detection system based on forward scattering orientation detection | |
| CN113670819A (en) | Ultraviolet difference method smoke comprehensive analyzer | |
| CN202794032U (en) | Standard state dry basis intelligent analyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XI'AN XIGUANG CHUANGWEI PHOTOELECTRIC CO., LTD. Assignor: North Electro-Optics Group Co.,Ltd. Contract record no.: 2014610000075 Denomination of utility model: Portable ultraviolet spectrum flue gas analyzer Granted publication date: 20120711 License type: Exclusive License Record date: 20140423 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: XI'AN XIGUANG CHUANGWEI PHOTOELECTRIC CO., LTD. Assignor: North Electro-Optics Group Co.,Ltd. Contract record no.: 2014610000075 Date of cancellation: 20160728 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161227 Address after: 710043 Xi'an District, Shaanxi City, Baqiao Street office, Baqiao Patentee after: XI'AN XIGUANG CHUANGWEI PHOTOELECTRIC CO., LTD. Address before: 710043 Changle Middle Road, Shaanxi, China, No. 35, No. Patentee before: North Electro-Optics Group 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: 20120711 Termination date: 20171204 |