DE3732231C2 - - Google Patents
Info
- Publication number
- DE3732231C2 DE3732231C2 DE3732231A DE3732231A DE3732231C2 DE 3732231 C2 DE3732231 C2 DE 3732231C2 DE 3732231 A DE3732231 A DE 3732231A DE 3732231 A DE3732231 A DE 3732231A DE 3732231 C2 DE3732231 C2 DE 3732231C2
- Authority
- DE
- Germany
- Prior art keywords
- concrete
- measured
- consistency
- flow resistance
- bluff body
- 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
- 238000002156 mixing Methods 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 239000000203 mixture Substances 0.000 description 9
- 239000012530 fluid Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4231—Proportioning or supplying water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/02—Controlling the operation of the mixing
- B28C7/022—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component
- B28C7/024—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component by measuring properties of the mixture, e.g. moisture, electrical resistivity, density
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873732231 DE3732231A1 (de) | 1987-09-24 | 1987-09-24 | Verfahren zum bestimmen der konsistenz von beton und zugehoeriger betonmischer |
US07/246,868 US4900154A (en) | 1987-09-24 | 1988-09-20 | Concrete mixer having means for determining the consistency of concrete mixing therein |
EP88115707A EP0308966A3 (de) | 1987-09-24 | 1988-09-23 | Verfahren zum Bestimmen der Konsistenz von Beton und zugehöriger Betonmischer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873732231 DE3732231A1 (de) | 1987-09-24 | 1987-09-24 | Verfahren zum bestimmen der konsistenz von beton und zugehoeriger betonmischer |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3732231A1 DE3732231A1 (de) | 1989-04-13 |
DE3732231C2 true DE3732231C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-09-03 |
Family
ID=6336809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873732231 Granted DE3732231A1 (de) | 1987-09-24 | 1987-09-24 | Verfahren zum bestimmen der konsistenz von beton und zugehoeriger betonmischer |
Country Status (3)
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4020253A1 (de) * | 1990-06-22 | 1992-01-23 | Jan Vala | Verfahren zur bestimmung der eigenschaften von formbaren massen |
Families Citing this family (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3914868A1 (de) * | 1989-05-05 | 1990-11-08 | Helmut Gerard | Pruefgeraet zur messung des erstarrungszeitpunktes eines gips-wasser-gemisches |
DE4431501B4 (de) * | 1994-09-03 | 2004-09-16 | Stetter Gmbh | Fahrzeugmischer für fließfähige Medien, wie Beton |
DE4437970A1 (de) * | 1994-10-24 | 1996-05-02 | Siemens Ag | Verfahren und Einrichtung zur Vorhersage der Konsistenz von Transportbeton |
AUPN296495A0 (en) * | 1995-05-15 | 1995-06-08 | Boral Resources (Vic) Pty Limited | Concrete mixing |
AU740479B2 (en) * | 1995-05-15 | 2001-11-08 | Boral Resources (Vic) Pty Limited | Concrete mixing |
IL114494A0 (en) * | 1995-07-06 | 1995-11-27 | Te Eni Moshe | System and method for controlling concrete production |
DE29707609U1 (de) * | 1997-04-26 | 1997-12-18 | Brunn, Peter, Prof., 91086 Aurachtal | Kugelmeßsystem zur Messung von rheologischen Größen von fließfähigen Baustoffsystemen oder Suspensionen |
GB2329027B (en) * | 1997-09-02 | 2001-12-19 | Tarmac Uk Ltd | Method of checking the slump of a ready-mix concrete load |
EP0924040A1 (en) * | 1997-12-17 | 1999-06-23 | Esi Elettrosistemi S.r.l. | A device for gauging the consistency of a mixture during mixing in a rotary recipient |
US6227039B1 (en) | 1998-01-06 | 2001-05-08 | Moshe Te'eni | System and method for controlling concrete production |
US6192763B1 (en) * | 1998-06-22 | 2001-02-27 | Frederick D. Cartwright | Method and apparatus for determining the strength path of a mortar or concrete mix |
DE19834781A1 (de) * | 1998-08-01 | 2000-02-17 | Integral Energietechnik Gmbh | Verfahren zur Bestimmung wechselnder Eiskonzentrationen in Binäreisvolumen |
US6464386B1 (en) * | 1999-02-26 | 2002-10-15 | Sumitomo Special Metals Co., Ltd. | Method and apparatus for mixing powder with liquid |
RU2200303C2 (ru) * | 1999-08-30 | 2003-03-10 | Государственное унитарное предприятие "Уральский научно-исследовательский химический институт с опытным заводом" | Устройство для дозирования |
US6286987B1 (en) | 1999-10-29 | 2001-09-11 | Cummins Engine Company, Inc. | System and method for controlling the speed of an engine providing power to a concrete mixing drum |
US6484079B2 (en) | 2000-04-28 | 2002-11-19 | Rmc Industries Corporation | Methods and systems for remotely monitoring sensor data in delivery vehicles |
GB2392502B (en) * | 2002-08-31 | 2007-02-21 | Hymix Ltd | Monitoring a concrete mixer |
FI125375B (fi) * | 2003-12-31 | 2015-09-15 | Consolis Technology Oy Ab | Menetelmä ja laitteisto betonimassan valmistamiseksi |
MXPA06009268A (es) * | 2004-02-13 | 2007-02-21 | Rs Solutions Llc | Metodo y sistema para calcular y reportar el asentamiento en vehiculos de entrega. |
US7824096B2 (en) * | 2006-02-15 | 2010-11-02 | Mcneilus Truck And Manufacturing, Inc. | Auxiliary water tank and pump assembly for a concrete mixing vehicle |
US20080037363A1 (en) * | 2006-08-14 | 2008-02-14 | Michael Joe Brannon | Agitation system and method for measuring settling rate of solids from a suspension |
US20080225631A1 (en) * | 2007-03-13 | 2008-09-18 | Stephen Ferris | Continuous feed cement mixer |
US8020431B2 (en) * | 2007-06-19 | 2011-09-20 | Verifi, LLC | Method and system for calculating and reporting slump in delivery vehicles |
US9518870B2 (en) | 2007-06-19 | 2016-12-13 | Verifi Llc | Wireless temperature sensor for concrete delivery vehicle |
US8989905B2 (en) * | 2007-06-19 | 2015-03-24 | Verifi Llc | Method and system for calculating and reporting slump in delivery vehicles |
US8764272B2 (en) * | 2008-04-07 | 2014-07-01 | W. R. Grace & Co., -Conn. | Method for monitoring thixotropy in concrete mixing drum |
WO2009144523A2 (en) * | 2008-05-28 | 2009-12-03 | Katzeff-Berman, Dully | Concrete slump measurement and control system |
WO2010110814A1 (en) * | 2009-03-27 | 2010-09-30 | Gr 2008 Llc | Slump flow monitoring |
US8557070B2 (en) | 2009-09-14 | 2013-10-15 | Joel A. Stanley | Method of mounting objects to polymeric membranes |
CA2771589C (en) | 2009-10-07 | 2013-01-22 | I.B.B. Rheologie Inc. | Probe and method for obtaining rheological property value |
US10520410B2 (en) | 2009-10-07 | 2019-12-31 | Command Alkon Incorporated | Probe and method for obtaining rheological property value |
US8311678B2 (en) | 2010-06-23 | 2012-11-13 | Verifi Llc | Method for adjusting concrete rheology based upon nominal dose-response profile |
US9789629B2 (en) | 2010-06-23 | 2017-10-17 | Verifi Llc | Method for adjusting concrete rheology based upon nominal dose-response profile |
CN102121839B (zh) * | 2010-12-21 | 2012-06-27 | 三一重工股份有限公司 | 一种检测装置及混凝土泵送设备 |
EP2906400B1 (en) | 2012-10-15 | 2017-05-24 | Verifi LLC | Sneak water detection for concrete delivery vehicles |
EP2906399B1 (en) | 2012-10-15 | 2022-04-06 | Verifi LLC | Reporting method and system for reporting concrete volume in a delivery vehicle mixing drum |
EP2943321B1 (en) * | 2013-01-11 | 2021-04-21 | GCP Applied Technologies Inc. | Concrete mixture measurement sensor and method |
BR112016008673B1 (pt) | 2013-10-18 | 2022-05-03 | Gcp Applied Technologies Inc | Método para alcançar um tempo de resposta rápido de um polímero de éter policarboxilato em uma mistura de concreto |
CN104028160A (zh) * | 2014-06-20 | 2014-09-10 | 张宇涵 | 一种机械辅助的液体配量装置 |
US20170217047A1 (en) * | 2014-07-24 | 2017-08-03 | Gcp Applied Technologies Inc. | Self-Cleaning Concrete Mix Monitoring |
JP6539101B2 (ja) * | 2015-04-27 | 2019-07-03 | 住友大阪セメント株式会社 | 水硬性材料の混練方法 |
CN104977230B (zh) * | 2015-07-02 | 2017-11-24 | 山东科技大学 | 一种用于矿用喷射混凝土长距离输送的试验系统 |
DE102016003482A1 (de) * | 2016-03-21 | 2017-09-21 | Liebherr-Mischtechnik Gmbh | Pumpenträger für eine Hydraulikpumpe zum Antrieb der Mischtrommel eines Fahrmischers |
JP6997191B2 (ja) * | 2016-12-22 | 2022-02-03 | コマンド アルコン インコーポレイテッド | フレッシュコンクリートを取り扱うための方法およびシステム |
AU2018308900A1 (en) * | 2017-07-28 | 2020-02-27 | Command Alkon Incorporated | Methods and system for measuring density of fresh concrete |
PT3664925T (pt) * | 2017-08-11 | 2024-04-16 | Gcp Applied Tech Inc | Medição de água cinzenta |
WO2019040562A1 (en) * | 2017-08-22 | 2019-02-28 | Cidra Corporate Services Llc | TECHNIQUES FOR DETECTING THE VOLUME AND / OR VISCOSITY OF CONCRETE IN A ROTARY CONTAINER |
AU2018345626B2 (en) * | 2017-10-03 | 2024-07-25 | Command Alkon Incorporated | Method and system for mixing concrete constituents in a drum |
CA3088904A1 (en) * | 2018-02-08 | 2019-08-15 | Command Alkon Incorporated | Methods and systems for handling fresh concrete based on hydraulic pressure and on rheological probe pressure |
WO2019213349A1 (en) | 2018-05-02 | 2019-11-07 | Command Alkon Incorporated | Methods for determining fresh concrete discharge volume and discharge flow rate and system using same |
DE102018208392A1 (de) * | 2018-05-28 | 2019-11-28 | Zf Friedrichshafen Ag | Vorrichtung zur Bestimmung von Parametern eines Mischgutes in einer Mischtrommel |
CN108789822A (zh) * | 2018-07-04 | 2018-11-13 | 合肥欧语自动化有限公司 | 一种混凝土自动化生产搅拌装置 |
CN108890887A (zh) * | 2018-07-04 | 2018-11-27 | 合肥欧语自动化有限公司 | 一种混凝土自动化生产装置 |
CN109291250A (zh) * | 2018-11-22 | 2019-02-01 | 宁津县金宏机械有限责任公司 | 滚筒式搅拌斗 |
WO2021178278A1 (en) * | 2020-03-02 | 2021-09-10 | Command Alkon Incorporated | Probe and method for monitoring fresh concrete using an electromechanical actuator |
CN111912746B (zh) * | 2020-06-09 | 2022-08-02 | 广西大学 | 基于底部阻力分析混凝土和易性的定量评估方法 |
CN112277157B (zh) * | 2020-10-21 | 2024-12-31 | 温州市中土工程机械有限公司 | 一种可调节混合物比例的石膏砂浆助拌机 |
DE102021201456A1 (de) * | 2021-02-16 | 2022-08-18 | Putzmeister Engineering Gmbh | Baustoffvorrichtung und Verwendung mindestens eines Teilsensors |
CN116352877B (zh) * | 2023-04-11 | 2025-05-13 | 中铁二十一局集团第一工程有限公司 | 具有混凝土阻力传感组件的搅拌设备 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2409014A (en) * | 1946-10-08 | Mix-consistency indicator fob | ||
US1730893A (en) * | 1926-07-07 | 1929-10-08 | Koehring Co | Method of and apparatus for determining the consistency of concrete |
US2089604A (en) * | 1932-11-17 | 1937-08-10 | Ernest A Hagy | Apparatus for testing concrete mixtures for consistency |
US2643542A (en) * | 1947-09-06 | 1953-06-30 | Worthington Corp | Apparatus for determining the consistency of concrete mix |
US2630706A (en) * | 1949-01-26 | 1953-03-10 | Jr Glenway Maxon | Consistency meter |
US3403546A (en) * | 1965-08-18 | 1968-10-01 | Cleo C. Stratton | Slump indicator for concrete |
GB1182590A (en) * | 1966-02-21 | 1970-02-25 | Fred Gresty | Measurement and adjustment of the consistency of flowable concrete |
DE2429858C3 (de) * | 1974-06-21 | 1979-12-13 | Pozemne Stavby, N.P., Nitra (Tschechoslowakei) | Vorrichtung zum automatischen Dosieren des Wassers beim Mischen von Betongemischen einer gewünschten Konsistenz |
US3924447A (en) * | 1974-12-19 | 1975-12-09 | Eldon Garrison | Slump indicator |
US3933341A (en) * | 1975-01-29 | 1976-01-20 | Gerhard Hudelmaier | Transit concrete mixer |
US4356723A (en) * | 1975-10-02 | 1982-11-02 | Royal W. Sims | Process and apparatus for continuously measuring slump |
US4027859A (en) * | 1976-05-25 | 1977-06-07 | Pettibone Corporation | Automatic control of liquid addition to a mixture by power sensing |
DE2855324C2 (de) * | 1978-12-21 | 1986-11-27 | Elba-Werk Maschinen-Gesellschaft Mbh & Co, 7505 Ettlingen | Verfahren zur Regelung der Wasserzugabe bei der Betonzubereitung und Vorrichtung zur Durchführung des Verfahrens |
SU903129A1 (ru) * | 1979-02-02 | 1982-02-07 | Центральный Ордена Трудового Красного Знамени Научно-Исследовательский И Проектный Институт Типового И Экспериментального Проектирования Жилища "Цнииэпжилища" | Смеситель принудительного перемешивани |
DE3026033A1 (de) * | 1980-07-09 | 1982-01-28 | Hudelmaier, geb. Otto, Ingrid, 7900 Ulm | Transportbetonmischer |
SU961983A1 (ru) * | 1980-07-21 | 1982-09-30 | Новосибирский электротехнический институт | Устройство дл перемешивани смеси |
DE3101468C2 (de) * | 1981-01-19 | 1983-07-07 | Hudelmaier, geb. Otto, Ingrid, 7900 Ulm | "Betonmischer" |
DE3113785A1 (de) * | 1981-04-04 | 1982-10-28 | Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen | Verfahren und vorrichtung zur bestimmung der konsistenz von angemachtem beton |
US4436429A (en) * | 1981-05-11 | 1984-03-13 | William A. Strong | Slurry production system |
DE3228983C2 (de) * | 1982-08-03 | 1985-11-07 | Hudelmaier, Ingrid, 7900 Ulm | Transportbetonmischer |
DE3306406A1 (de) * | 1983-02-24 | 1984-08-30 | Ernst 2000 Hamburg Thöne | Verfahren und vorrichtung zum messen der viskositaet einer fluessigkeit |
DE3310570A1 (de) * | 1983-03-23 | 1984-09-27 | Hudelmaier, Ingrid, 7900 Ulm | Transportbetonmischer |
DE3347310C1 (de) * | 1983-12-28 | 1985-06-27 | Hudelmaier, Gerhard, Dr., 7900 Ulm | Transportbetonmischer |
EP0188674B1 (de) * | 1984-12-28 | 1991-07-03 | Friedrich Wilh. Schwing GmbH | Fahrmischer, vorzugsweise mit Gegenlaufentleerung für Baustoffe, insbesondere Beton |
-
1987
- 1987-09-24 DE DE19873732231 patent/DE3732231A1/de active Granted
-
1988
- 1988-09-20 US US07/246,868 patent/US4900154A/en not_active Expired - Fee Related
- 1988-09-23 EP EP88115707A patent/EP0308966A3/de not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4020253A1 (de) * | 1990-06-22 | 1992-01-23 | Jan Vala | Verfahren zur bestimmung der eigenschaften von formbaren massen |
Also Published As
Publication number | Publication date |
---|---|
US4900154A (en) | 1990-02-13 |
DE3732231A1 (de) | 1989-04-13 |
EP0308966A2 (de) | 1989-03-29 |
EP0308966A3 (de) | 1990-05-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3732231C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
DE2855324C2 (de) | Verfahren zur Regelung der Wasserzugabe bei der Betonzubereitung und Vorrichtung zur Durchführung des Verfahrens | |
DE112013002952B4 (de) | Misch- und Einstellverfahren für Formsand | |
DE2337129A1 (de) | Vorrichtung zum bereiten und abgeben von faser-beton-gemischen | |
EP0620422A1 (de) | Verfahren und Vorrichtung zur gravimetrischen Dosierung und Vermischung mindestens zweier Komponenten | |
DE102018128224A1 (de) | Einbaubohlen-Steuerungssystem | |
DE3127401A1 (de) | Verfahren zum herstellen von beton mittels eines mehrstufigen trogmischers | |
DE1602660A1 (de) | Verfahren und Maschine zur Herstellung von Rotationsformkoerpern durch Walzen | |
DE69111368T2 (de) | Verfahren und Vorrichtung zum Dosieren, Mischen und Anbringen eines bestimmten Mörtels. | |
EP3075507A1 (de) | Transportfahrzeug | |
DE19511585B4 (de) | Verfahren und Vorrichtung zur Betonbereitung in einem Trommelmischsystem | |
EP0509957A1 (de) | Vorrichtung zum dosierten Zuführen von Pulver zu einer Pulververarbeitungseinheit | |
DE2724132B2 (de) | Verfahren und Vorrichtung zum Herstellen eines schaumstoffbildenden Reaktionsgemisches | |
DE60106025T2 (de) | Dosiereinrichtung | |
DE1679800A1 (de) | Misch- und Austrageeinrichtung fuer Fuellstoffe und Bindemittel | |
DE4130339C2 (de) | Verfahren zur Verbesserung eines Baugrundes | |
DE2432609C3 (de) | Verfahren und Einrichtung zum Zuführen der erforderlichen Zusatzwassermenge bei der Herstellung von Beton | |
DE4041727C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
DE2507591A1 (de) | Vorrichtung zur herstellung von beton | |
EP0679722A2 (de) | Verfahren zur Steuerung des Nutzungsgrades einer diskontinuierlich arbeitenden Zentrifuge, insbesondere einer Zuckerzentrifuge | |
DE10123637B4 (de) | Propellerrührwerk zum Aufrühren von Rohöl | |
DE4331057C1 (de) | Optimierung der Rührerdrehzahl in einer mechanischen Dosiervorrichtung | |
DE3240626C2 (de) | Von Hand geführtes, motorisch angetriebenes Bodenverdichtungsgerät | |
CH459591A (de) | Differentialsteuerung zum automatischen Ausgleich der Dichteschwankungen des Abfüllmittels in einer Dosiermaschine | |
DE2407474C2 (de) | Verfahren und Mischer zum Aufbereiten von Formsand |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |