GB1356567A - Manufacture of carbon fibres - Google Patents
Manufacture of carbon fibresInfo
- Publication number
- GB1356567A GB1356567A GB4299270A GB4299270A GB1356567A GB 1356567 A GB1356567 A GB 1356567A GB 4299270 A GB4299270 A GB 4299270A GB 4299270 A GB4299270 A GB 4299270A GB 1356567 A GB1356567 A GB 1356567A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal
- fibres
- polypropylene
- extract
- polymers
- 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
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052799 carbon Inorganic materials 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000003245 coal Substances 0.000 abstract 4
- 229920000642 polymer Polymers 0.000 abstract 4
- -1 vinylidene vinyl halides Chemical class 0.000 abstract 4
- 239000004743 Polypropylene Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 abstract 3
- 229920001155 polypropylene Polymers 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 2
- 239000010426 asphalt Substances 0.000 abstract 2
- 239000004926 polymethyl methacrylate Substances 0.000 abstract 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 229920006397 acrylic thermoplastic Polymers 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000010000 carbonizing Methods 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 229920003086 cellulose ether Polymers 0.000 abstract 1
- 239000011300 coal pitch Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229920003052 natural elastomer Polymers 0.000 abstract 1
- 229920001194 natural rubber Polymers 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 239000011301 petroleum pitch Substances 0.000 abstract 1
- 239000011295 pitch Substances 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 239000004627 regenerated cellulose Substances 0.000 abstract 1
- 238000009987 spinning Methods 0.000 abstract 1
- 229920003051 synthetic elastomer Polymers 0.000 abstract 1
- 239000005061 synthetic rubber Substances 0.000 abstract 1
- 239000011269 tar Substances 0.000 abstract 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 abstract 1
- 229920001567 vinyl ester resin Polymers 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/32—Apparatus therefor
- D01F9/322—Apparatus therefor for manufacturing filaments from pitch
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/04—Supporting filaments or the like during their treatment
- D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
- D01D10/0481—Supporting filaments or the like during their treatment while in continuous movement the filaments passing through a tube
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/145—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/145—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues
- D01F9/15—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues from coal pitch
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
- D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
- D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F9/22—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/32—Apparatus therefor
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B2700/00—Treating of textile materials, e.g. bleaching, dyeing, mercerising, impregnating, washing; Fulling of fabrics
- D06B2700/09—Apparatus for passing open width fabrics through bleaching, washing or dyeing liquid
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Inorganic Fibers (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4299270A GB1356567A (en) | 1970-09-08 | 1970-09-08 | Manufacture of carbon fibres |
| ZA715147A ZA715147B (en) | 1970-09-08 | 1971-08-02 | Improvements in or relating to the manufacturing of carbon fibres |
| CA119,640A CA975520A (en) | 1970-09-08 | 1971-08-03 | Manufacture of carbon fibres |
| AU32393/71A AU455517B2 (en) | 1970-09-08 | 1971-08-16 | Improvements in or relating tothe manufacture of carbon fibres |
| US00174552A US3852428A (en) | 1970-09-08 | 1971-08-24 | Manufacture of carbon fibres |
| FR7131161A FR2103378A5 (enExample) | 1970-09-08 | 1971-08-27 | |
| BE771971A BE771971A (fr) | 1970-09-08 | 1971-08-30 | Procede de fabrication de fibres et filaments de carbone |
| DE2144404A DE2144404C3 (de) | 1970-09-08 | 1971-09-04 | Verfahren zur Herstellung von im wesentlichen aus Kohlenstoff bestehenden Fasern, Fäden oder Folien |
| NL7112252A NL7112252A (en) | 1970-09-08 | 1971-09-06 | Carbon fibres prodn - with extrusion of a hydrocarbon cpd contng a compatible additive |
| NL7112253A NL7112253A (enExample) | 1970-09-08 | 1971-09-06 | |
| NL7112254A NL7112254A (enExample) | 1970-09-08 | 1971-09-06 | |
| NL7112255A NL7112255A (enExample) | 1970-09-08 | 1971-09-06 | |
| IT69962/71A IT939569B (it) | 1970-09-08 | 1971-09-07 | Procedimento per la fabbricazione di fibre filamenti e pellicole di carbonio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4299270A GB1356567A (en) | 1970-09-08 | 1970-09-08 | Manufacture of carbon fibres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1356567A true GB1356567A (en) | 1974-06-12 |
Family
ID=10426872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4299270A Expired GB1356567A (en) | 1970-09-08 | 1970-09-08 | Manufacture of carbon fibres |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3852428A (enExample) |
| BE (1) | BE771971A (enExample) |
| CA (1) | CA975520A (enExample) |
| DE (1) | DE2144404C3 (enExample) |
| FR (1) | FR2103378A5 (enExample) |
| GB (1) | GB1356567A (enExample) |
| IT (1) | IT939569B (enExample) |
| ZA (1) | ZA715147B (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3238849A1 (de) * | 1981-10-23 | 1983-05-05 | Nippon Oil Co., Ltd., Tokyo | Ausgangspeche fuer kohlenstoffasern |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE790878A (fr) * | 1971-11-08 | 1973-03-01 | Charbonnages De France | Procede de production de fibres de carbone et fibres obtenues |
| US4020145A (en) * | 1973-01-18 | 1977-04-26 | Celanese Corporation | Carbon fiber production |
| JPS62295926A (ja) * | 1986-06-16 | 1987-12-23 | Nitto Boseki Co Ltd | 炭素繊維チヨツプドストランドの製造方法 |
| EP0381475B1 (en) * | 1989-02-01 | 1996-11-20 | Kureha Kagaku Kogyo Kabushiki Kaisha | Process for producing formed carbon products |
| JPH0819573B2 (ja) * | 1989-02-17 | 1996-02-28 | 群栄化学工業株式会社 | 活性炭繊維の製造法 |
| US5308598A (en) * | 1990-02-01 | 1994-05-03 | E. I. Du Pont De Nemours And Company | Plexifilamentary fibers from pitch |
| ZA935559B (en) * | 1992-08-17 | 1994-03-02 | Enerkom Pty Ltd | Production of carbon fibre |
| TW440606B (en) * | 1994-12-22 | 2001-06-16 | Owens Corning Fiberglass Corp | Rotary fiberization of asphalt |
| US5718787A (en) * | 1994-12-22 | 1998-02-17 | Owens-Corning Fiberglas Technology Inc. | Integration of asphalt and reinforcement fibers |
| US5712033A (en) * | 1996-08-05 | 1998-01-27 | Owens-Corning Fiberglass Technology, Inc. | Asphalt-containing organic fibers |
| WO2004031461A1 (ja) * | 2002-09-30 | 2004-04-15 | Teijin Limited | 炭素繊維およびマットの製造のための方法と組成物 |
| KR101858943B1 (ko) | 2015-05-19 | 2018-06-28 | 주식회사 유성텔레콤 | 고연화점 피치의 제조방법 및 이 방법에 의해 제조된 고연화점 피치 |
| EP4554924A1 (en) * | 2022-07-14 | 2025-05-21 | University of Wyoming | Extracts of coal and uses thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1925005A (en) * | 1926-03-25 | 1933-08-29 | Koppers Co Inc | Coal treatment process |
| US3395970A (en) * | 1963-10-30 | 1968-08-06 | Deering Milliken Res Corp | Method of carbonizing polyacrylonitrile impregnated cellulose, cyanoethylated cellulose and acrylonitrile graft copolymerized cellulose textiles |
| US3392216A (en) * | 1963-11-01 | 1968-07-09 | Kureha Chemical Ind Co Ltd | Method for producing carbon structures from molten baked substances |
| GB1222881A (en) * | 1967-01-06 | 1971-02-17 | Nippon Carbon Company Ltd | Process for the preparation of carbon fibers |
| US3576907A (en) * | 1967-01-26 | 1971-04-27 | Kanegafuchi Spinning Co Ltd | Method of producing mixed filaments of polyimides and polyether-polyesters |
| US3639953A (en) * | 1969-08-07 | 1972-02-08 | Kanegafuchi Spinning Co Ltd | Method of producing carbon fibers |
| BE757620A (fr) * | 1969-10-17 | 1971-04-16 | Bayer Ag | Procede de preparation de fibres de carbone |
| US3629379A (en) * | 1969-11-06 | 1971-12-21 | Kureha Chemical Ind Co Ltd | Production of carbon filaments from low-priced pitches |
| US3607672A (en) * | 1970-02-04 | 1971-09-21 | Atomic Energy Commission | Method for producing febrous carbon structures |
| FR2087413A5 (enExample) * | 1970-05-19 | 1971-12-31 | Charbonnages De France |
-
1970
- 1970-09-08 GB GB4299270A patent/GB1356567A/en not_active Expired
-
1971
- 1971-08-02 ZA ZA715147A patent/ZA715147B/xx unknown
- 1971-08-03 CA CA119,640A patent/CA975520A/en not_active Expired
- 1971-08-24 US US00174552A patent/US3852428A/en not_active Expired - Lifetime
- 1971-08-27 FR FR7131161A patent/FR2103378A5/fr not_active Expired
- 1971-08-30 BE BE771971A patent/BE771971A/xx unknown
- 1971-09-04 DE DE2144404A patent/DE2144404C3/de not_active Expired
- 1971-09-07 IT IT69962/71A patent/IT939569B/it active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3238849A1 (de) * | 1981-10-23 | 1983-05-05 | Nippon Oil Co., Ltd., Tokyo | Ausgangspeche fuer kohlenstoffasern |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2144404A1 (de) | 1972-03-09 |
| AU3239371A (en) | 1973-02-22 |
| IT939569B (it) | 1973-02-10 |
| US3852428A (en) | 1974-12-03 |
| DE2144404B2 (de) | 1979-10-18 |
| DE2144404C3 (de) | 1980-07-17 |
| BE771971A (fr) | 1971-12-31 |
| ZA715147B (en) | 1972-04-26 |
| FR2103378A5 (enExample) | 1972-04-07 |
| CA975520A (en) | 1975-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1356567A (en) | Manufacture of carbon fibres | |
| GB1220482A (en) | Shaped carbon articles | |
| Ōtani et al. | On the raw materials of MP carbon fiber | |
| SU477574A3 (ru) | Способ получени сырь дл производства углеродного волокна | |
| DE4314461B4 (de) | Großoberflächige schwefelhaltige Aktivkohle | |
| GB1356568A (en) | Manufacture of carbon fibres | |
| GB1248507A (en) | Production of carbon articles formed by slurry casting | |
| GB1338396A (en) | Synthetic pitches or fields for ball games | |
| GB1271555A (en) | Shaped articles and production thereof using acid sludge | |
| US3784679A (en) | Process for producing carbon fibres | |
| DE2006524C3 (de) | Verfahren zur Herstellung von Kohlenstoff- bzw. Graphitfasern | |
| GB1356569A (en) | Manufacture of carbon fibres | |
| GB1352625A (en) | Preparation of spinnable pitch | |
| GB1420493A (en) | Shaped articles of isotropic carbon | |
| US3959448A (en) | Process for the manufacture of carbon fibers | |
| GB1356566A (en) | Manufacture of carbon fibres | |
| GB1454629A (en) | Carbon fibres | |
| Aboytes et al. | Accessibility of the carbon black particle surface to elastomers | |
| DE2125335A1 (de) | Feuerhemmende Massen | |
| ES2001622A6 (es) | Composiciones de disolventes utilizables para la realizacion de revestimientos de betun soluciones de polimeros y revestimiento de betunes que utilizan estos componentes | |
| GB1282500A (en) | Process for preparing carbon fibres | |
| GB1315940A (en) | Process for the manufacture of carbon fibres | |
| GB1308536A (en) | Production of carbonaceous and graphitic fibres of high modulus of elasticity | |
| GB1283714A (en) | Process for the production of carbon fibres | |
| US1220001A (en) | Material for the preservation of lumber. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee | ||
| PCNP | Patent ceased through non-payment of renewal fee | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Free format text: IN PAT.BUL.5159,PAGE 155 FOR 1356567 READ 1356507 |