EP3137785A1 - Friction lining for industrial brakes and drive elements and method for producing a friction lining for industrial brakes and drive elements - Google Patents
Friction lining for industrial brakes and drive elements and method for producing a friction lining for industrial brakes and drive elementsInfo
- Publication number
- EP3137785A1 EP3137785A1 EP15730950.1A EP15730950A EP3137785A1 EP 3137785 A1 EP3137785 A1 EP 3137785A1 EP 15730950 A EP15730950 A EP 15730950A EP 3137785 A1 EP3137785 A1 EP 3137785A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- friction
- layer
- friction lining
- carrier layer
- drive elements
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 20
- 239000000806 elastomer Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 239000005060 rubber Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 87
- 239000002355 dual-layer Substances 0.000 abstract 1
- 239000002783 friction material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/22—Making multilayered or multicoloured articles
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
- B29K2009/06—SB polymers, i.e. butadiene-styrene polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/007—Hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0078—Shear strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/16—Frictional elements, e.g. brake or clutch linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/005—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces having a layered structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0056—Elastomers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0038—Surface treatment
Definitions
- the invention relates to a friction lining for Industhebremsen and drive elements with a two-layer structure, wherein a friction layer is connected to a carrier layer, and a method for producing a two-ply friction lining.
- Friction linings in industrial brakes and industrial drive elements serve to hold a static load (holding brakes), to brake a rotational movement (dynamic brakes) or to adjust relative movements (couplings).
- a two-layer friction material is known, which consists of a fibrous base material.
- This fibrous base has a first layer and a second layer which are bonded together during a papermaking wet process.
- a first layer of friction material is formed, which comprises fibers and / or fillers and / or friction particles.
- a second layer of friction material also includes fibers and / or fillers and / or friction parts and is formed on top of the first layer.
- Such a friction material is particularly suitable for use in modern transmission systems and brake systems in the automotive industry, where it is preferably used in wet clutch systems.
- DE 10 201 1 000 720 A1 discloses a friction brake for elevators with improved damping properties, in which a fork-like brake lining comprises a rail during a braking operation.
- the brake lining is there formed with a single layer.
- Damping elements are arranged laterally next to the brake pads, which largely prevent grinding of the brake pads in the released state of the brake on the rail,
- the invention is therefore an object of the invention to provide a friction lining for industrial brakes and industrial drive elements, which has good frictional properties and largely prevented Reibreteinbrüche and / or increased wear of the industrial brake.
- the object is achieved in that the carrier layer is formed own spring and the friction layer and / or the carrier layer consist of a plastic-elastomer composite.
- the carrier layer comprises 10% to 40% elastomer, 0% to 20% resins and 40% to 80% fillers, while the friction layer comprises 0% to 25% elastomer, 5% to 30% resins and 45% contains up to 70% fillers and additives.
- This composition of the respective plastic elastomer composite for carrier layer or friction layer fulfills the properties imposed on it when using friction linings for industrial brakes and drive elements, such as industrial couplings.
- the elastomer of the carrier layer is a rubber.
- Such a rubber preferably an SBR rubber (styrene-butadiene rubber) has a particularly good resilience in the application.
- the carrier layer in the finished state of the friction lining has a Shore hardness of not more than 100 ShD. By means of this maximum hardness, it is ensured that the carrier layer has sufficient inherent resilience. The ideal hardness depends on the application, the contact pressure and the friction layer used.
- the carrier layer has a shear strength of at least 1 N / mm 2 in the finished state of the friction lining. By means of this shear strength a high load capacity of the carrier layer against shearing is ensured in the forces occurring during the braking process.
- the friction layer has grooves. By means of such grooves, the individual segments of the friction layer are decoupled and can each align ideally, which entails a better torque transmission through the friction lining.
- the friction layer is partially or completely separated by the grooves.
- a development of the invention relates to a method for producing a two-ply friction lining for industrial brakes and drive elements, in which a friction layer is connected to a carrier layer.
- the friction layer or the self-springing carrier layer to be formed is produced in a pre-pressing process as a semi-finished part, to which a granulate-like base material of the carrier layer or the friction layer is applied, which is hot-pressed with the semi-finished part.
- a stable friction lining for industrial brakes and drive elements can be produced.
- the friction layer or the carrier layer is hot or cold pressed or rolled and punched out to produce the semi-finished part. This procedure can be selected depending on the application.
- both backing layer and friction layer are produced as a semi-finished part and then joined together in a hot pressing process.
- a further development of the invention relates to a method for producing a two-layer friction lining for industrial brakes and drive elements, in which a friction layer is connected to a carrier layer.
- the friction layer and the self-springing carrier layer to be formed are manufactured separately from each other as a semi-finished part, wherein the hardened semi-finished parts are then glued.
- Fig. 2 is a plan view of the friction layer of the friction lining according to the invention.
- a friction lining 1 in Fig. 1, is shown, which is annular.
- the friction lining 1 consists of two layers, a friction layer 2 and a carrier layer 3, which may also be referred to as an underlay.
- the two-layer friction lining 1 is mounted in the application on the carrier layer 3 on a rigid rotor of the industrial brake or the drive element, such as a clutch.
- the friction layer 2 is a plastic-elastomer composite that ranges from 0% to 25%
- Elastomer in the form of rubber and 5% to 30% resins. It has filler proportions between 45% and 70%.
- the plastic-elastomer composite composing the carrier layer 3 is a composite of SBR rubber, the proportion of which is between 10% to 40%. In addition, between 0% to 20% resins and 40% to 80% fillers are contained.
- the carrier layer 3 in the finished state has a hardness of not more than 80 ShD, preferably less than 60 ShD, in order to ensure adequate inherent resilience of the carrier layer. The ideal hardness depends on the application, the contact pressure and the friction layer used.
- the carrier layer 3 has a shear strength which is adapted according to the shear and rotational forces occurring in the application, but is above 1 N / mm 2 , preferably above 2 N / mm 2 . Both layers 2, 3 are adapted to each other so that they can be securely connected together.
- the friction layer 2 has grooves 4 at regular intervals on its surface, which grooves penetrate the friction layer 2 approximately completely in the depth.
- the groove base 5 is narrower than the opening of the groove 4 on the surface of the friction layer 2.
- the friction lining 1 described can be produced as follows.
- the carrier layer 3 is hot-pressed or cold-pressed.
- the carrier layer 3 can be rolled and punched out.
- the carrier layer 3 thus produced as a semi-finished part is pressed with a ready-mixed mixture for the friction layer 2 in a hot press.
- the ready mix for the friction layer 2 consists of a granulate-like base material.
- the friction layer 2 may be hot pressed or cold pressed or rolled and punched out of the granule-like base material and thus formed into a semi-finished part.
- the friction layer 2 and the carrier layer 3 can be braced, conically braced or loosely cured.
- the friction layer 2 and the carrier layer 3 can be produced separately from one another as semi-finished parts and hot-pressed directly together.
- the semi-finished parts can also be cured and then glued together.
- the double-layered friction linings 1 can be produced with defined thickness ratios between the friction layer 2 and the carrier layer 3.
- a secure connection between the two layers 2, 3 ensured by joining or direct compression of the materials.
- the resulting friction linings 1 have a sufficiently small plate to be able to use them easily in existing manufacturing processes of industrial brakes can.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014207968 | 2014-04-28 | ||
DE102014213779 | 2014-07-16 | ||
PCT/DE2015/200274 WO2015165461A1 (en) | 2014-04-28 | 2015-04-23 | Friction lining for industrial brakes and drive elements and method for producing a friction lining for industrial brakes and drive elements |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3137785A1 true EP3137785A1 (en) | 2017-03-08 |
Family
ID=53483636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15730950.1A Withdrawn EP3137785A1 (en) | 2014-04-28 | 2015-04-23 | Friction lining for industrial brakes and drive elements and method for producing a friction lining for industrial brakes and drive elements |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170030425A1 (en) |
EP (1) | EP3137785A1 (en) |
CN (1) | CN106415050A (en) |
DE (1) | DE112015002029A5 (en) |
WO (1) | WO2015165461A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018177472A1 (en) | 2017-03-28 | 2018-10-04 | Schaeffler Technologies AG & Co. KG | Frictional part |
DE102017121431A1 (en) | 2017-09-15 | 2019-03-21 | Schaeffler Technologies AG & Co. KG | Torque limiter for a drive train |
US10816043B2 (en) * | 2018-03-06 | 2020-10-27 | Schaeffler Technologies AG & Co. KG | Method of forming wet friction material by burning off fibers |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0669482A2 (en) * | 1994-02-25 | 1995-08-30 | HOERBIGER & Co. | Friction lining |
US20020038743A1 (en) * | 2000-08-10 | 2002-04-04 | Sumitomo (Sei) Brake Systems, Inc. | Pad for disk brake |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3231058A (en) * | 1962-02-19 | 1966-01-25 | Raybestos Manhattan Inc | Friction device |
US3365041A (en) * | 1965-10-21 | 1968-01-23 | Raybestos Manhattan Inc | Clutch facing |
US3751330A (en) * | 1971-03-15 | 1973-08-07 | Abex Corp | Railroad brake shoes |
FR2406128A1 (en) * | 1977-07-25 | 1979-05-11 | Abex Pagid Equip | METHOD FOR MANUFACTURING LININGS FOR DISC BRAKES |
FR2681925B1 (en) * | 1991-10-01 | 1997-09-05 | Flertex Sa | DISC BRAKE PAD FOR RAILWAY. |
FR2697306B1 (en) * | 1992-10-26 | 1994-12-09 | Valeo | Clutch friction disc, especially for a motor vehicle. |
DE19543329A1 (en) * | 1995-11-21 | 1997-05-22 | Frimatec Ingenieurgesellschaft | Process for the production of friction linings |
CA2202432C (en) | 1996-05-17 | 2006-09-12 | Marc A. Yesnik | Two-ply friction material |
JP5183900B2 (en) * | 2005-11-14 | 2013-04-17 | 曙ブレーキ工業株式会社 | Non-asbestos friction member |
EP2236851A1 (en) * | 2009-03-31 | 2010-10-06 | Carl Freudenberg KG | Coupling lining |
DE102011000720A1 (en) | 2011-02-14 | 2012-08-16 | Klaus-Peter Kapp | Friction brake for lifts with improved damping properties |
-
2015
- 2015-04-23 US US15/303,356 patent/US20170030425A1/en not_active Abandoned
- 2015-04-23 DE DE112015002029.2T patent/DE112015002029A5/en active Pending
- 2015-04-23 CN CN201580023329.2A patent/CN106415050A/en active Pending
- 2015-04-23 EP EP15730950.1A patent/EP3137785A1/en not_active Withdrawn
- 2015-04-23 WO PCT/DE2015/200274 patent/WO2015165461A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0669482A2 (en) * | 1994-02-25 | 1995-08-30 | HOERBIGER & Co. | Friction lining |
US20020038743A1 (en) * | 2000-08-10 | 2002-04-04 | Sumitomo (Sei) Brake Systems, Inc. | Pad for disk brake |
Non-Patent Citations (1)
Title |
---|
See also references of WO2015165461A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE112015002029A5 (en) | 2017-03-02 |
CN106415050A (en) | 2017-02-15 |
WO2015165461A1 (en) | 2015-11-05 |
US20170030425A1 (en) | 2017-02-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0587640B1 (en) | Friction lining and method of manufacturing it | |
EP3362692B1 (en) | Film for increasing friction between two frictionally connected components | |
DE2744994A1 (en) | SYNCHRONIZING RING | |
EP1959152A2 (en) | Friction covering | |
AT507251B1 (en) | friction plate | |
DE19717393A1 (en) | Disc brake and brake shoe set for a disc brake | |
WO2015165461A1 (en) | Friction lining for industrial brakes and drive elements and method for producing a friction lining for industrial brakes and drive elements | |
DE102018216346A1 (en) | Brake pad for a vehicle brake and brake system | |
DE60213163T2 (en) | brake lining | |
AT504546A1 (en) | wet friction lining | |
WO2010112176A1 (en) | Clutch lining | |
DE102009010747A1 (en) | Brake disk for use in disk brake of brake system of passenger car, has friction ring with opening, and cup rolling in opening, where lug is provided at edge of cup, and recess is provided at edge of friction ring | |
EP0351447B1 (en) | Element consisting of several layers for the transmission of a frictional force, especially for clutches or brakes | |
EP0189533B1 (en) | Construction element of polymeric material reinforced with fibrous material | |
WO2015176726A1 (en) | Method for the production of a wet friction lining, and wet friction lining | |
EP2942542B1 (en) | Damping sheet | |
DE102020207361A1 (en) | Friction brake body, friction brake and method for producing a friction brake body | |
WO2003006843A1 (en) | Brake shoe, especially for a disc brake | |
DE3831197C2 (en) | ||
EP2458241B1 (en) | Method for producing a friction element | |
DE102007023191A1 (en) | Disk brake for commercial vehicle, has pressure pad, which stands in effective connection with adjusting spindle, where pressure surfaces of adjusting spindle and pressure pad are turned towards each other, and one surface is convex shaped | |
DE102010020001A1 (en) | Friction lining for torque transmission | |
DE19946706A1 (en) | Friction lining for clutches, brakes etc., having sintered metal fiber mat with constant fiber geometry and porosity over lining to thickness of 0.1 to 0.5 mm | |
DE102008001260A1 (en) | Clutch disc, in particular for a motor vehicle clutch | |
DE7133858U (en) | Friction lining plate |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20161128 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: STEINHAUER, FRANK Inventor name: MEISSNER, DANIEL Inventor name: LOEHR, STEFAN Inventor name: WEYEL, THORSTEN Inventor name: SPANDERN, CHRISTIAN Inventor name: RUEHRUP, VERA |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20181217 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20190628 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230523 |