BR112022000661A8 - Extrusora para processamento com aumento de viscosidade de polímeros fundíveis - Google Patents
Extrusora para processamento com aumento de viscosidade de polímeros fundíveisInfo
- Publication number
- BR112022000661A8 BR112022000661A8 BR112022000661A BR112022000661A BR112022000661A8 BR 112022000661 A8 BR112022000661 A8 BR 112022000661A8 BR 112022000661 A BR112022000661 A BR 112022000661A BR 112022000661 A BR112022000661 A BR 112022000661A BR 112022000661 A8 BR112022000661 A8 BR 112022000661A8
- Authority
- BR
- Brazil
- Prior art keywords
- extruder
- polymers
- diameter
- extruder screw
- threads
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
- B29B7/421—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix with screw and additionally other mixing elements on the same shaft, e.g. paddles, discs, bearings, rotor blades of the Banbury type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
- B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
- B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
- B29B7/429—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
- B29B7/489—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
- B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/86—Component parts, details or accessories; Auxiliary operations for working at sub- or superatmospheric pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/425—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders using three or more screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/435—Sub-screws
- B29C48/44—Planetary screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
- B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
- B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
- B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/485—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with three or more shafts provided with screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/826—Apparatus therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
EXTRUSORA PARA PROCESSAMENTO COM AUMENTO DE VISCOSIDADE DE POLÍMEROS FUNDÍVEIS. Extrusora para o processamento com aumento de viscosidade de polímeros fundíveis, uma rosca extrusora (20) com pelo menos um filete de rosca extrusora helicoidal (31, 32, 33, 34, 35) sendo disposta em um alojamento com um recesso de alojamento interno. Em relação ao seu diâmetro externo, a rosca extrusora (20) é dividida em uma região inicial de diâmetro, uma região central de diâmetro e uma região de extremidade de diâmetro (21, 22, 23), em que a área central de diâmetro (23) tem um diâmetro externo D2 maior do que pelo menos uma das outras áreas de diâmetro (21, 25), em que um cone de transição (22, 24) é formado entre áreas com diâmetros diferentes D1, D2 ou D3. Duas zonas de desgaseificação (23.1, 23.3) são fornecidas na região central de diâmetro (23), cada uma das quais tem pelo menos uma abertura de sucção associada no alojamento, em que uma zona de desgaseificação (23.3) é formada na área das roscas satélites (26) e uma outra zona de desgaseificação (23.1) na direção do fluxo à sua frente. A profundidade de passo dos passos de rosca (42, 43, 44) formados entre os filetes de rosca extrusora (32, 33, 34, 35) é maior em ambas as zonas de desgaseificação (23.1, 23.3) do que em pelo menos uma seção de vedação e compressão (23.2) formada entre elas.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019119528 | 2019-07-18 | ||
DE102019127393.5A DE102019127393B4 (de) | 2019-07-18 | 2019-10-10 | Extruder zur viskositätserhöhenden Aufbereitung von aufschmelzbaren Polymeren |
PCT/DE2020/100631 WO2021008660A1 (de) | 2019-07-18 | 2020-07-19 | Extruder zur viskositätserhöhenden aufbereitung von aufschmelzbaren polymeren |
Publications (2)
Publication Number | Publication Date |
---|---|
BR112022000661A2 BR112022000661A2 (pt) | 2022-05-31 |
BR112022000661A8 true BR112022000661A8 (pt) | 2023-02-23 |
Family
ID=74093345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112022000661A BR112022000661A8 (pt) | 2019-07-18 | 2020-07-19 | Extrusora para processamento com aumento de viscosidade de polímeros fundíveis |
Country Status (8)
Country | Link |
---|---|
US (1) | US20220134627A1 (pt) |
EP (1) | EP3999296B1 (pt) |
JP (1) | JP7355917B2 (pt) |
CN (1) | CN114126829B (pt) |
BR (1) | BR112022000661A8 (pt) |
DE (1) | DE102019127393B4 (pt) |
PL (1) | PL3999296T3 (pt) |
WO (1) | WO2021008660A1 (pt) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113799363A (zh) * | 2021-09-15 | 2021-12-17 | 青岛新大成塑料机械有限公司 | 具有自动排气功能的挤出设备 |
CN115044986B (zh) * | 2022-06-30 | 2023-07-21 | 武汉纺织大学 | 切片纺免干燥制备聚酯纤维或聚酰胺纤维的装置和方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3445890A (en) * | 1966-12-08 | 1969-05-27 | Nrm Corp | Two-stage extruder |
DE2158246C3 (de) | 1971-11-24 | 1979-06-28 | Eickhoff-Kleinewefers Kunststoffmaschinen Gmbh, 4630 Bochum | Vorrichtung zum Aufbereiten und Strangpressen von thermoplastischen Kunststoffen |
DE2726962C2 (de) * | 1977-06-15 | 1982-09-02 | Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover | Vorrichtung zum Aufbereiten und Strangpressen von plastischen Massen, insbesondere Kunststoff oder Kautschuk |
EP0588008B1 (de) | 1992-09-18 | 1997-04-16 | HERMANN BERSTORFF Maschinenbau GmbH | Vorrichtung zur Entgasung von insbesondere thermoplastischen Kunststoffschmelzen |
DE10150627A1 (de) | 2001-10-12 | 2003-05-15 | Gneuss Kunststofftechnik Gmbh | Extruder zur Gewinnung von Kunststoff-Schmelzen |
DE102007045156A1 (de) * | 2007-09-20 | 2009-04-02 | Evonik Röhm Gmbh | Entgasungsextruder zur Entgasung eines Polymermaterials sowie Verfahren zur Entgasung eines Sirups aus Polymeren, Lösungsmitteln und/oder Monomeren unter Verwendung eines Entgasungsextruders |
DE102013003380B3 (de) | 2013-03-01 | 2014-04-24 | Gneuss Gmbh | Extruder |
EP3221120B1 (en) * | 2014-11-18 | 2020-01-08 | Mohawk Industries, Inc. | Verfahren zur massenherstellung von endlosfilamenten |
DE102017111275B4 (de) | 2017-05-23 | 2020-02-13 | Gneuss Gmbh | Extruderschnecke für einen Mehrschneckenextruder für die Kunststoffextrusion und Mehrschneckenextruder |
DE102018128884A1 (de) * | 2018-11-16 | 2020-05-20 | Gneuss Gmbh | Multischneckensystem und Verfahren zur Verarbeitung von Polymerschmelze damit |
DE102018130102B4 (de) * | 2018-11-28 | 2022-06-09 | Gneuss Gmbh | Verfahren zum Aufbereiten von festen Kunststoffpartikeln aus einem Polykondensat mittels eines Multirotationssystems und Multirotationssystem dafür |
-
2019
- 2019-10-10 DE DE102019127393.5A patent/DE102019127393B4/de active Active
-
2020
- 2020-07-19 EP EP20749802.3A patent/EP3999296B1/de active Active
- 2020-07-19 JP JP2022502891A patent/JP7355917B2/ja active Active
- 2020-07-19 PL PL20749802.3T patent/PL3999296T3/pl unknown
- 2020-07-19 BR BR112022000661A patent/BR112022000661A8/pt unknown
- 2020-07-19 CN CN202080051893.6A patent/CN114126829B/zh active Active
- 2020-07-19 WO PCT/DE2020/100631 patent/WO2021008660A1/de unknown
-
2022
- 2022-01-14 US US17/576,605 patent/US20220134627A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2022541245A (ja) | 2022-09-22 |
CN114126829A (zh) | 2022-03-01 |
US20220134627A1 (en) | 2022-05-05 |
DE102019127393B4 (de) | 2023-09-21 |
EP3999296B1 (de) | 2023-08-30 |
CN114126829B (zh) | 2024-03-19 |
DE102019127393A1 (de) | 2021-01-21 |
WO2021008660A1 (de) | 2021-01-21 |
JP7355917B2 (ja) | 2023-10-03 |
BR112022000661A2 (pt) | 2022-05-31 |
PL3999296T3 (pl) | 2024-02-26 |
EP3999296A1 (de) | 2022-05-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B06W | Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette] |