CN201037690Y - Online device for gas water heater - Google Patents
Online device for gas water heater Download PDFInfo
- Publication number
- CN201037690Y CN201037690Y CNU200720049187XU CN200720049187U CN201037690Y CN 201037690 Y CN201037690 Y CN 201037690Y CN U200720049187X U CNU200720049187X U CN U200720049187XU CN 200720049187 U CN200720049187 U CN 200720049187U CN 201037690 Y CN201037690 Y CN 201037690Y
- Authority
- CN
- China
- Prior art keywords
- water
- heater
- water heater
- temperature sensor
- main
- 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 - Lifetime
Links
Images
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
An online device for gas water heater comprises a master heater, a slave heater, a cold water inlet pipe and a hot water outlet pipe, which is technically characterized in that: the device also comprises an influent temperature sensor, a water flow sensor, an effluent temperature sensor and a controller, wherein, the influent temperature sensor and the water flow sensor are respectively connected with the cold water inlet pipe, the effluent temperature sensor is connected with the hot water outlet pipe, the water inlet pipes and the water outlet pipes of the master heater and the slave heater are in parallel with the cold water inlet pipe and the hot water outlet pipe; the slave heater is provided with a water solenoid valve, the controller receives the information from the influent temperature sensor, the water flow sensor, the effluent temperature sensor and an operation panel to control electronic control devices of the master heater and the slave heater, thereby the master heater and the slave heater are controlled. The device has the advantages that: the device can effectively provide abundant hot water and can be automatically adjusted according to hot water demand.
Description
Technical field: the utility model relates to a kind of gas heater on-line unit, can control the gas heater of a plurality of heat supply water in parallel, and it is adapted to provide hot water with the place of hot water in a large number to needs such as hotel, hotel, sauna center, bath centers.
Background technology: at present, the gas heater that is used for heat supply water in combustion gas tool field all adopts single independent control, and when a large amount of hot water of needs, single gas heater heat supply water is just obviously not enough, as use that a plurality of gas heaters are together in parallel, control is got up and is inconvenient.For overcoming these defectives, the gas heater on-line unit is developed.
Summary of the invention: technical problem to be solved in the utility model provides a kind of gas heater on-line unit, and it can provide a large amount of hot water effectively, and can regulate automatically according to the demand of using hot water.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises main water heater, from water heater, cold water inlet, the hot water outlet pipe, it also comprises the inflow temperature sensor, water flow sensor, the leaving water temperature sensor, controller, described inflow temperature sensor and water flow sensor are connected on the cold water inlet, the leaving water temperature sensor is connected on the hot water outlet pipe, main water heater, be connected in parallel on cold water inlet and the hot water outlet pipe from water inlet tube of water heater and outlet pipe, the described water solenoid valve that from water heater, is provided with, controller receives the inflow temperature sensor, water flow sensor, the leaving water temperature sensor, the information of guidance panel is controlled main water heater electric control gear, from the water heater electric control gear, thereby control main water heater, from water heater.
Described controller comprises the current rectifying and wave filtering circuit, guidance panel information receiving circuit, discharge testing circuit, inflow temperature testing circuit, leaving water temperature testing circuit of single-chip microcomputer, reset circuit of SCM, power supply, with main water heater with from the telecommunication circuit of water heater electric control gear.
Described is 2～10 from water heater.
Described main water heater electric control gear comprises current rectifying and wave filtering circuit, main air blower commentaries on classics stopping control circuit, main current testing circuit, primary ignition control circuit, main gas valve switch control circuit, main proportioning valve adjusting control circuit, main flame detection circuit, main overtemperature prote control circuit, master and the controller control of communication circuit of host scm, host scm reset circuit, main power source.
Described from the water heater electric control gear comprise from single-chip microcomputer, from reset circuit of SCM, from the current rectifying and wave filtering circuit of power supply, from blower fan change stop control circuit, from the water solenoid valve ON-OFF control circuit, from the current testing circuit, from ignition control circuit, from gas valve switch control circuit, from proportioning valve regulate control circuit, from flame detection circuit, from the overtemperature prote control circuit, from controller control of communication circuit.
The utility model is compared the beneficial effect that is produced with background technology:
1, because the utility model adopts controller to control main water heater and from water heater, make the water circuit system and the external water pipe of main water heater straight-through, and water solenoid valve is being housed from the water inlet of water heater water circuit system, be used to control water inlet from water heater, with main water heater, from the water heater parallel connection, and be installed into water temperature sensor and water flow sensor respectively at cold water inlet mouth place, the leaving water temperature sensor is installed at hot water effluent's mouth of pipe place, so it can provide a large amount of hot water effectively, and can regulate automatically according to the demand of using hot water.
Description of drawings: Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is the circuit block diagram of Fig. 1 middle controller 8.
Fig. 3 is the circuit block diagram of main water heater 1 electric control gear among Fig. 1.
Fig. 4 is from the circuit block diagram of water heater 2 electric control gears among Fig. 1.
Fig. 5 is the workflow diagram of Fig. 1 middle controller 8.
Fig. 6 is the workflow diagram of main water heater 1 electric control gear among Fig. 1.
Fig. 7 is from the workflow diagram of water heater 2 electric control gears among Fig. 1.
The specific embodiment: referring to Fig. 1, the utility model comprises main water heater 1, from water heater 2, cold water inlet 3, hot water outlet pipe 4, inflow temperature sensor 5, water flow sensor 6, leaving water temperature sensor 7 and controller 8.
The structure of main water heater 1 is the structure of common constant temp gas water heater, comprises main electric control gear, main water route device, main current Hall switch (or water flow sensor), main gas circuit control device, primary ignition device, the detection of main flame, main burner, main heat-exchange device, main safety guard, main fume extractor and main bottom surface shell.
From water heater 2 comprise from electric control gear, by water device, from current Hall switch (or water flow sensor), from the gas circuit control device, from igniter, from flame detect, from burner, from heat-exchange device, from safety guard, from fume extractor and from bottom surface shell, water solenoid valve 10, water solenoid valve 10 is positioned at the water inlet of its water circuit system.
Referring to Fig. 2, controller 8 includes the current rectifying and wave filtering circuit, guidance panel information receiving circuit, discharge testing circuit, inflow temperature testing circuit, leaving water temperature testing circuit of single-chip microcomputer, reset circuit of SCM, power supply and the control circuit that communicates with the electric control gear of master and slave water heater.
Referring to Fig. 3, current rectifying and wave filtering circuit, main air blower that the main electric control gear of main water heater 1 includes host scm, host scm reset circuit, main power source change the main control circuit that stops control circuit, main current testing circuit, primary ignition control circuit, main gas valve switch control circuit, main proportioning valve adjusting control circuit, main flame detection circuit, main overtemperature prote control circuit and communicate by letter with controller.
Referring to Fig. 4, from water heater 2 from electric control gear include from single-chip microcomputer, from reset circuit of SCM, from the current rectifying and wave filtering circuit of power supply, from blower fan change stop control circuit, from the water solenoid valve ON-OFF control circuit, from the current testing circuit, from ignition control circuit, from gas valve switch control circuit, from proportioning valve regulate control circuit, from flame detection circuit, from the overtemperature prote control circuit and communicate by letter with controller from control circuit.
Referring to Fig. 5, controller 8 just can pass through guidance panel 9 when start, obtain the required design temperature of user (promptly will realize go out hot water temperature), and send single-chip microcomputer to by the guidance panel information receiving circuit among Fig. 2, detect in the cold water inlet 3 among Fig. 1 by water flow sensor among Fig. 16 whether discharge is arranged then, and this signal is sent to single-chip microcomputer by the discharge testing circuit among Fig. 2.When the single-chip microcomputer among Fig. 2 obtained no discharge, single-chip microcomputer was according to the control situation, judge among Fig. 1 main water heater 1 or (with) whether start shooting from water heater 2.If start then continues to detect in the cold water inlet 3 among Fig. 1 by water flow sensor among Fig. 16 whether discharge is arranged; If open state, then the single-chip microcomputer among Fig. 2 then by with the main electric control gear of telecommunication circuit main water heater 1 in Fig. 1 of master and slave water heater electric control gear or (with) close machine information from sending of water heater 2 among Fig. 1 from electric control gear, continue then to get back in the cold water inlet 3 that detects among Fig. 1 whether discharge is arranged.When Fig. 1 middle controller 8 passes through water flow sensor 6, obtain required discharge, when sending single-chip microcomputer to by the discharge testing circuit among Fig. 2 then, the single-chip microcomputer among Fig. 2 is according to the control situation, judge among Fig. 1 main water heater 1 or (with) whether start shooting from water heater 2.If start, the single-chip microcomputer among Fig. 2 then send boot-strap information by the electric control gear with telecommunication circuit main water heater 1 in Fig. 1 of master and slave water heater electric control gear; If start shooting, the single-chip microcomputer among Fig. 2 then judges by leaving water temperature testing circuit among leaving water temperature sensor 7 and Fig. 2 among Fig. 1 to obtain whether the hot water temperature among the hot water outlet pipe 7 equates with the prior design temperature that obtains among Fig. 1; If equate, then keep work; If it is unequal, single-chip microcomputer among Fig. 2 then advances cold water temperature according to what inflow temperature testing circuit among inflow temperature sensor 5 and Fig. 2 among Fig. 1 obtained, carry out the power conversion computing with the required discharge and the design temperature of prior acquisition, then by with the main electric control gear of telecommunication circuit main water heater 1 in Fig. 1 of master and slave water heater electric control gear or (with) send the information (contain proportioning valve and regulate, establish newly/close slave quantity) of adjusting thermic load from water heater 2 from electric control gear, in the last cold water inlet of getting back to again among detection Fig. 13 whether discharge is arranged, constantly circulation.
Referring to Fig. 6, when the main electric control gear of main water heater 1 is switched among Fig. 1, just begin to receive the instruction that Fig. 1 middle controller 8 sends, and send host scm to master communication circuit controller, after host scm is received coded message by among Fig. 3, judge at first whether coding conforms to the ID sign indicating number of self, if do not conform to, just abandon reception, and judge whether main water heater 1 is in open state among Fig. 1 the back surface information, if be in off-mode, then get back to receiving instruction again; If be in open state, then keep burning and relevant safeguard protection is detected.If the ID sign indicating number conforms to, just receive the information of back, and to information decode, CRC check, if verification is unsuccessful, host scm will judge also whether main water heater 1 is in open state among Fig. 1 among Fig. 3, if be in off-mode, then get back to receiving instruction again, if be in open state, then keep burning and relevant safeguard protection is detected; If the CRC check success is with regard to the instruction of execution graph 1 middle controller 8 transmissions.Host scm is at first handled instruction among Fig. 3, divides into start-up command, thermic load adjustment instruction, or shutdown command.If start-up command, whether host scm has water to flow through by the current Hall switch (or water flow sensor) of the main water heater 1 among Fig. 1 and the water route device of the main water heater 1 among the main current testing circuit detection Fig. 1 among Fig. 3 among Fig. 3, if there is not water to flow through, then host scm does not just send the start firing command among Fig. 3, receives the instruction that Fig. 1 middle controller 8 sends again and directly return; If there are current to flow through, then host scm instructs by the blower fan transmission blower fan driving of main air blower control circuit main water heater 1 in Fig. 1 among Fig. 3, by the primary ignition control circuit, the igniter of main water heater 1 sends firing command in Fig. 1, by main gas valve control circuit, the gas circuit control device of main water heater 1 sends and opens the valve instruction in Fig. 1.After the igniting, host scm detects combustion position by the flame detecting device of main water heater 1 among main flame detection circuit and Fig. 1 among Fig. 3, and keeps burning and safeguard protection detection.If the thermic load adjustment is instructed, then host scm is regulated control circuit by main proportioning valve among Fig. 3, and the main proportioning valve of main water heater 1 sends the proportioning valve regulating command in Fig. 1, and keeps burning and safeguard protection detection.If shutdown command, then the host scm among Fig. 3 is by the correlation function circuit among Fig. 3, and main water heater 1 sends and closes the instruction that gas electromagnetic valve, blower fan and flame detect in Fig. 1.
Referring to Fig. 7, among Fig. 1 from water heater 2 when electric control gear is switched on, just begin to receive the instruction that Fig. 1 middle controller 8 sends, and by among Fig. 4 with the sending to from single-chip microcomputer of controller from telecommunication circuit, receive coded message from single-chip microcomputer after, judge at first whether coding conforms to the ID sign indicating number of self, if do not conform to, just abandon reception, and judge among Fig. 1 whether be in open state from water heater 2 to the back surface information, if be in off-mode, then get back to receiving instruction again; If be in open state, then keep burning and relevant safeguard protection is detected.If the ID sign indicating number conforms to, just receive the information of back, and to information decode, CRC check, if verification is unsuccessful, also will judge Fig. 1 whether be in open state from single-chip microcomputer among Fig. 4,, then get back to receiving instruction again if be in off-mode from water heater 2, if be in open state, then keep burning and relevant safeguard protection is detected; If the CRC check success is with regard to the instruction of execution graph 1 middle controller 8 transmissions.At first instruction is handled from single-chip microcomputer among Fig. 4, divided into start-up command, thermic load adjustment instruction, or shutdown command.If start-up command, pass through the water solenoid valve control circuit from single-chip microcomputer among Fig. 4, the valve instruction is opened in water solenoid valve 10 transmissions from water heater 2 in Fig. 1, whether there is water to flow through from single-chip microcomputer by the water route device that detects Fig. 1 from the current testing circuit from the current Hall switch (or water flow sensor) of water heater 2 and Fig. 4 Fig. 1 among Fig. 4 then from water heater 2, if there is not water to flow through, then just do not send the start firing command from single-chip microcomputer among Fig. 4, receive the instruction that Fig. 1 middle controller 8 sends again and directly return; If there are current to flow through, then pass through to send blower fan driving instruction from single-chip microcomputer among Fig. 4 from draught fan control circuit blower fan from water heater 2 to Fig. 1, by from ignition control circuit, igniter from water heater 2 in Fig. 1 sends firing command, by from the gas valve control circuit, in Fig. 1, drive valve and instruct from the gas circuit control device transmission of water heater 2.After the igniting, combustion position is detected by flame detecting device from flame detection circuit and Fig. 1 from single-chip microcomputer among Fig. 4, and keep burning and safeguard protection detection from water heater 2.If thermic load adjustment instruction, then among Fig. 4 from single-chip microcomputer by regulating control circuit from proportioning valve, in Fig. 1 from water heater 2 send the proportioning valve regulating command from proportioning valve, and keep burning and safeguard protection detects.If shutdown command, then among Fig. 4 from single-chip microcomputer by the correlation function circuit Fig. 4, in Fig. 1, send and close the instruction that gas electromagnetic valve, water solenoid valve, blower fan and flame detect from water heater 2.
Claims (2)
1. gas heater on-line unit, it comprises main water heater (1), from water heater (2), cold water inlet (3), hot water outlet pipe (4), it is characterized in that it also comprises inflow temperature sensor (5), water flow sensor (6), leaving water temperature sensor (7), controller (8), described inflow temperature sensor (5) and water flow sensor (6) are connected on the cold water inlet (3), leaving water temperature sensor (7) is connected on the hot water outlet pipe (4), main water heater (1), be connected in parallel on cold water inlet (3) and the hot water outlet pipe (4) from the water inlet pipe and the outlet pipe of water heater (2), the described water solenoid valve (10) that from water heater (2), is provided with, controller (8) receives inflow temperature sensor (5), water flow sensor (6), leaving water temperature sensor (7), the information of guidance panel (9) is controlled main water heater electric control gear, from the water heater electric control gear, thereby control main water heater (1), from water heater (2).
2. gas heater on-line unit according to claim 1 is characterized in that described is 2～10 from water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720049187XU CN201037690Y (en) | 2007-03-12 | 2007-03-12 | Online device for gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720049187XU CN201037690Y (en) | 2007-03-12 | 2007-03-12 | Online device for gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201037690Y true CN201037690Y (en) | 2008-03-19 |
Family
ID=39210205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720049187XU Expired - Lifetime CN201037690Y (en) | 2007-03-12 | 2007-03-12 | Online device for gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201037690Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213489A (en) * | 2011-03-31 | 2011-10-12 | 广东万家乐燃气具有限公司 | Method and system for parallel connection of multiple gas heaters |
| CN102705980A (en) * | 2012-06-06 | 2012-10-03 | 广东万家乐燃气具有限公司 | Device with heating and water-heating device multi-machine parallel system and use method thereof |
| CN102759197A (en) * | 2011-04-28 | 2012-10-31 | 朱利和 | Control method of hot water supply system |
| CN103953964A (en) * | 2014-04-01 | 2014-07-30 | 广东万和新电气股份有限公司 | Gas heating hot water furnace parallel connection heat supply system |
| CN104197502A (en) * | 2014-09-05 | 2014-12-10 | 成都前锋电子有限责任公司 | Heat source machine formed by connecting gas water heaters in parallel and control method |
| CN104214955A (en) * | 2014-09-29 | 2014-12-17 | 芜湖美的厨卫电器制造有限公司 | Control method for water supply system |
| CN104654440A (en) * | 2013-11-18 | 2015-05-27 | 关隆股份有限公司 | Hot water supply system |
| CN104776587A (en) * | 2015-04-16 | 2015-07-15 | 秦伟君 | Rapid water heating device and control method thereof |
| CN104913512A (en) * | 2015-06-30 | 2015-09-16 | 厦门阿玛苏电子卫浴有限公司 | Control method of instant-heating water heater based on parallel structure of multiple heating cups |
| CN106288414A (en) * | 2016-08-05 | 2017-01-04 | 广东美的暖通设备有限公司 | Commercial water-heating machine system and control method thereof, device, main frame and from machine |
| CN108826657A (en) * | 2018-06-26 | 2018-11-16 | 广东长虹电子有限公司 | A kind of heater with combustion gas statistical function |
-
2007
- 2007-03-12 CN CNU200720049187XU patent/CN201037690Y/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213489B (en) * | 2011-03-31 | 2015-12-16 | 广东万家乐燃气具有限公司 | A kind of method and system realizing gas heater multi-machine parallel connection |
| CN102213489A (en) * | 2011-03-31 | 2011-10-12 | 广东万家乐燃气具有限公司 | Method and system for parallel connection of multiple gas heaters |
| CN102759197A (en) * | 2011-04-28 | 2012-10-31 | 朱利和 | Control method of hot water supply system |
| CN102705980A (en) * | 2012-06-06 | 2012-10-03 | 广东万家乐燃气具有限公司 | Device with heating and water-heating device multi-machine parallel system and use method thereof |
| CN104654440B (en) * | 2013-11-18 | 2017-12-12 | 关隆股份有限公司 | Hot water supply system |
| CN104654440A (en) * | 2013-11-18 | 2015-05-27 | 关隆股份有限公司 | Hot water supply system |
| CN103953964A (en) * | 2014-04-01 | 2014-07-30 | 广东万和新电气股份有限公司 | Gas heating hot water furnace parallel connection heat supply system |
| CN103953964B (en) * | 2014-04-01 | 2017-04-26 | 广东万和新电气股份有限公司 | Gas heating hot water furnace parallel connection heat supply system |
| CN104197502A (en) * | 2014-09-05 | 2014-12-10 | 成都前锋电子有限责任公司 | Heat source machine formed by connecting gas water heaters in parallel and control method |
| CN104214955B (en) * | 2014-09-29 | 2017-02-15 | 芜湖美的厨卫电器制造有限公司 | Control method for water supply system |
| CN104214955A (en) * | 2014-09-29 | 2014-12-17 | 芜湖美的厨卫电器制造有限公司 | Control method for water supply system |
| CN104776587A (en) * | 2015-04-16 | 2015-07-15 | 秦伟君 | Rapid water heating device and control method thereof |
| CN104776587B (en) * | 2015-04-16 | 2017-11-24 | 嘉兴志嘉智能电器有限公司 | A kind of rapid water heating device and its control method |
| CN104913512A (en) * | 2015-06-30 | 2015-09-16 | 厦门阿玛苏电子卫浴有限公司 | Control method of instant-heating water heater based on parallel structure of multiple heating cups |
| CN104913512B (en) * | 2015-06-30 | 2017-12-19 | 厦门阿玛苏电子卫浴有限公司 | Control method based on more heating cup parallel-connection structure instant water heaters |
| CN106288414A (en) * | 2016-08-05 | 2017-01-04 | 广东美的暖通设备有限公司 | Commercial water-heating machine system and control method thereof, device, main frame and from machine |
| CN106288414B (en) * | 2016-08-05 | 2019-05-28 | 广东美的暖通设备有限公司 | Commercial water-heating machine system and its control method, device, host and slave |
| CN108826657A (en) * | 2018-06-26 | 2018-11-16 | 广东长虹电子有限公司 | A kind of heater with combustion gas statistical function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201037690Y (en) | Online device for gas water heater | |
| EP3150937B1 (en) | Gas water heating appliance with pre-heating function | |
| EP3418649B1 (en) | Hot water appliance and hot water system using the same | |
| EP3270075B1 (en) | Gas-fired water heater with external pump for regulating temperature of outlet water | |
| KR101427694B1 (en) | Hot-water centered boiler for heating and hot-water supply | |
| CA2629686C (en) | Methods and apparatus for heating air with hot water | |
| JP2008536088A (en) | Boiler-linked temperature control system and heating water recovery pipe for boiler | |
| CN206771717U (en) | Water heater with small fluctuation of outlet water temperature | |
| CN109945499A (en) | A kind of water-heater system control method and water heater | |
| CN205825411U (en) | A kind of gas heater of band heating function | |
| CN201311059Y (en) | Gas water heater with water circulating device | |
| CN102116501A (en) | Hybrid power wall-hung boiler | |
| CN201615538U (en) | Double-source wall-mounted boiler | |
| KR101835269B1 (en) | Hybrid boiler for low-carbon and Eco-friendly, and the control method thereof | |
| CN112283948B (en) | Gas heating water heater with zero cold water function | |
| JP3714215B2 (en) | Hot water system | |
| KR20110133073A (en) | Heat pipe boiler and heating control system and circulating controller | |
| CN210220200U (en) | Pressure starting circulating wall-mounted gas water heater | |
| CN113154498A (en) | Pump station and hot water system adopting same | |
| KR20040106651A (en) | Hot Water Supply System | |
| CN204705044U (en) | A kind of control device for Horizontal gas hot-water boiler combustor | |
| CN213984066U (en) | Gas heating water heater with zero cold water function | |
| KR100361154B1 (en) | Apparatus for controlling purge heating of boiler and the method thereof | |
| CN107676825A (en) | Artificial intelligence proportion adjustment gas-cooker | |
| KR20020047842A (en) | Apparatus and method for controlling preheat of biler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG WANHE NEW ELECTRICITY CO., LTD. Free format text: FORMER OWNER: GUANGDONG WANHE GROUP CO.,LTD. Effective date: 20091106 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091106 Address after: No. 13, Jianye Middle Road, Shunde hi tech Zone (Ronggui), Guangdong, Foshan Province: 528305 Patentee after: Guangdong Vanward New Electric Co., Ltd. Address before: No. 80 Hongqi Road, Ronggui street, Shunde District, Guangdong, Foshan Province: 528305 Patentee before: Vanward Group Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080319 |
|
| CX01 | Expiry of patent term |