GB1588734A - Tetracarboxylic acid tetrachlorides - Google Patents
Tetracarboxylic acid tetrachlorides Download PDFInfo
- Publication number
- GB1588734A GB1588734A GB7222/80A GB722280A GB1588734A GB 1588734 A GB1588734 A GB 1588734A GB 7222/80 A GB7222/80 A GB 7222/80A GB 722280 A GB722280 A GB 722280A GB 1588734 A GB1588734 A GB 1588734A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bis
- chlorocarbonyl
- general formula
- compound
- triiodo
- 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
- 150000000000 tetracarboxylic acids Chemical class 0.000 title description 4
- -1 tetracarboxylic acid tetrachloride Chemical class 0.000 claims description 12
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 9
- 125000002947 alkylene group Chemical group 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- FQAXLTARZOJBPJ-UHFFFAOYSA-N 2,4,6-triiodobenzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=C(I)C=C(I)C(C(Cl)=O)=C1I FQAXLTARZOJBPJ-UHFFFAOYSA-N 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- QDIIYWBIGXHQNO-UHFFFAOYSA-N 3-carboxyoxypropanoic acid Chemical compound OC(=O)CCOC(O)=O QDIIYWBIGXHQNO-UHFFFAOYSA-N 0.000 claims description 2
- BMKKXMYQHGGGDS-UHFFFAOYSA-N 5-[[2-(3,5-dicarbonochloridoyl-2,4,6-triiodoanilino)-2-oxoacetyl]amino]-2,4,6-triiodobenzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C=1C(=C(NC(C(=O)NC2=C(C(=C(C(=C2I)C(=O)Cl)I)C(=O)Cl)I)=O)C(=C(C=1I)C(=O)Cl)I)I BMKKXMYQHGGGDS-UHFFFAOYSA-N 0.000 claims description 2
- RVQWKSZZWPFNAD-UHFFFAOYSA-N 5-[[6-(3,5-dicarbonochloridoyl-2,4,6-triiodoanilino)-6-oxohexanoyl]amino]-2,4,6-triiodobenzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C=1C(=C(NC(CCCCC(=O)NC2=C(C(=C(C(=C2I)C(=O)Cl)I)C(=O)Cl)I)=O)C(=C(C=1I)C(=O)Cl)I)I RVQWKSZZWPFNAD-UHFFFAOYSA-N 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 12
- 239000000203 mixture Substances 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- JEZJSNULLBSYHV-UHFFFAOYSA-N 5-amino-2,4,6-triiodobenzene-1,3-dicarboxylic acid Chemical compound NC1=C(I)C(C(O)=O)=C(I)C(C(O)=O)=C1I JEZJSNULLBSYHV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000002872 contrast media Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- CTSLXHKWHWQRSH-UHFFFAOYSA-N oxalyl chloride Chemical compound ClC(=O)C(Cl)=O CTSLXHKWHWQRSH-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- DPLMHGOPFZLSRR-UHFFFAOYSA-N (3-chloro-3-oxopropyl) carbonochloridate Chemical compound ClC(=O)CCOC(Cl)=O DPLMHGOPFZLSRR-UHFFFAOYSA-N 0.000 description 1
- TZEBLZRSPJJCOS-UHFFFAOYSA-N 2,4,6-triiodo-5-(methylamino)benzene-1,3-dicarbonyl chloride Chemical compound CNC1=C(I)C(C(Cl)=O)=C(I)C(C(Cl)=O)=C1I TZEBLZRSPJJCOS-UHFFFAOYSA-N 0.000 description 1
- XIZKIJKZPGHKKR-UHFFFAOYSA-N 2-[2-(2-chloro-2-oxoethoxy)ethoxy]acetyl chloride Chemical compound ClC(=O)COCCOCC(Cl)=O XIZKIJKZPGHKKR-UHFFFAOYSA-N 0.000 description 1
- YEUHLBCROBWKDT-UHFFFAOYSA-N 5-[[2-[2-[2-(3,5-dicarbonochloridoyl-2,4,6-triiodoanilino)-2-oxoethoxy]ethoxy]acetyl]amino]-2,4,6-triiodobenzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C=1C(=C(NC(COCCOCC(=O)NC2=C(C(=C(C(=C2I)C(=O)Cl)I)C(=O)Cl)I)=O)C(=C(C=1I)C(=O)Cl)I)I YEUHLBCROBWKDT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- PWAXUOGZOSVGBO-UHFFFAOYSA-N adipoyl chloride Chemical compound ClC(=O)CCCCC(Cl)=O PWAXUOGZOSVGBO-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229940125898 compound 5 Drugs 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- SXYFKXOFMCIXQW-UHFFFAOYSA-N propanedioyl dichloride Chemical compound ClC(=O)CC(Cl)=O SXYFKXOFMCIXQW-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/02—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/12—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by halogen atoms or by nitro or nitroso groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Medicinal Preparation (AREA)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2628517A DE2628517C2 (de) | 1976-06-23 | 1976-06-23 | Dicarbonsäure-bis(3,5-dicarbamoyl-2,4,6-trijodanilid)-Verbindungen, Verfahren zu ihrer Herstellung und Röntgenkontrastmittel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1588734A true GB1588734A (en) | 1981-04-29 |
Family
ID=5981407
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7222/80A Expired GB1588734A (en) | 1976-06-23 | 1977-06-20 | Tetracarboxylic acid tetrachlorides |
| GB25644/77A Expired GB1588733A (en) | 1976-06-23 | 1977-06-20 | Dicarboxylic acid bis - (3,5 - dicarbamoyl - 2,4,6-triiodoanilides) |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25644/77A Expired GB1588733A (en) | 1976-06-23 | 1977-06-20 | Dicarboxylic acid bis - (3,5 - dicarbamoyl - 2,4,6-triiodoanilides) |
Country Status (28)
| Country | Link |
|---|---|
| US (1) | US4239747A (enExample) |
| JP (2) | JPS537637A (enExample) |
| AT (1) | AT361117B (enExample) |
| AU (1) | AU512304B2 (enExample) |
| BE (1) | BE856039A (enExample) |
| CA (2) | CA1106400A (enExample) |
| CH (1) | CH629751A5 (enExample) |
| CS (1) | CS199680B2 (enExample) |
| DD (1) | DD131014A5 (enExample) |
| DE (1) | DE2628517C2 (enExample) |
| DK (2) | DK150505C (enExample) |
| ES (1) | ES460007A1 (enExample) |
| FI (1) | FI67540C (enExample) |
| FR (1) | FR2355808A1 (enExample) |
| GB (2) | GB1588734A (enExample) |
| GR (1) | GR71696B (enExample) |
| HU (1) | HU174228B (enExample) |
| IE (2) | IE45225B1 (enExample) |
| IL (2) | IL52356A (enExample) |
| IT (1) | IT1237314B (enExample) |
| LU (2) | LU77588A1 (enExample) |
| NL (1) | NL189510C (enExample) |
| NO (2) | NO147447C (enExample) |
| PL (1) | PL108102B1 (enExample) |
| PT (1) | PT66690B (enExample) |
| SE (1) | SE436871B (enExample) |
| SU (1) | SU917696A3 (enExample) |
| ZA (1) | ZA773782B (enExample) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH626873A5 (enExample) * | 1977-03-28 | 1981-12-15 | Bracco Ind Chimica Spa | |
| DK273280A (da) * | 1979-06-28 | 1980-12-29 | Schering Ag | Trijoderede 5-aminoisophthalsyrederivater |
| IT1193211B (it) * | 1979-08-09 | 1988-06-15 | Bracco Ind Chimica Spa | Derivati dell'acido 2,4,6-triiodo-isoftalico,metodo per la loro preparazione e mezzi di contrasto che li contengono |
| IT1207226B (it) * | 1979-08-09 | 1989-05-17 | Bracco Ind Chimica Spa | Derivati dell'acido 2,4,6-triiodo-isoftalico, metodo per la loro preparazione e mezzi di contrasto che li contengono. |
| JPS56127373A (en) * | 1980-01-31 | 1981-10-06 | Univ California | Novel amino-dioxepane intermediate for synthesizing novel nonionic contrast agent |
| US4341756A (en) * | 1980-01-31 | 1982-07-27 | The Regents Of The University Of California | Novel amino-dioxepane intermediates for the synthesis of new non-ionic contrast media |
| DE3038853A1 (de) * | 1980-10-10 | 1982-05-27 | Schering Ag, 1000 Berlin Und 4619 Bergkamen | Neue n-hydroxy-alkylierte dicarbonsaeure-bis-(3,5-dicarbamoyl-2,4,6-trijodanilide), deren herstellung und diese enthaltende roentgenkonstrastmittel (ii) |
| NO161368C (no) * | 1982-11-08 | 1989-08-09 | Nyegaard & Co As | Roentgenkontrastmidler samt radiologiske preparater derav. |
| FR2541272A1 (fr) * | 1983-02-23 | 1984-08-24 | Guerbet Sa | Composes bromes et produits opacifiants en contenant |
| US4650903A (en) * | 1984-06-21 | 1987-03-17 | The Bf Goodrich Company | Oligomeric amides as synergists for antioxidants and UV stabilizers |
| DE3731542A1 (de) * | 1987-09-17 | 1989-03-30 | Schering Ag | Neue dicarbonsaeure-bis(3,5-dicarbamoyl-2,4,6-triiod-anilide), verfahren zu deren herstellung sowie diese enthaltende roentgenkontrastmittel |
| DE3739098A1 (de) * | 1987-11-16 | 1989-05-24 | Schering Ag | Neue substituierte dicarbonsaeure-bis(3,5-dicarbamoyl-2,4,6- trijod-anilide), verfahren zu deren herstellung sowie diese enthaltende roentgenkontrastmittel |
| US5075502A (en) * | 1989-12-13 | 1991-12-24 | Mallinckrodt, Inc. | Nonionic x-ray contrast agents, compositions and methods |
| IT1252180B (it) * | 1991-12-10 | 1995-06-05 | Bracco Ind Chimica Spa | 5,5'-(1,3-propandiil) bis (imino (2-osso-2,1-etandiil)acetilimino)-bis(2,4,6-triiodo-1,3-benzendicarbossiamidi),loro metodo di preparazione e mezzi di contrasto roentgenografici che li contengono |
| CN1038725C (zh) * | 1993-12-04 | 1998-06-17 | 吉林省鹊源国际生物工程有限公司 | 复方天然香菇营养液 |
| US6149891A (en) * | 1995-05-31 | 2000-11-21 | Israel Humanitarian Foundation Ltd. | X-ray contrast medium and method for protecting against harmful effects thereof |
| IT1299202B1 (it) * | 1998-05-08 | 2000-02-29 | Dibra Spa | Processo per la preparazione della s-n,n'-bis (2-idrossi-1- (idrossimetil)etil) -5-((2-idrossi-1-ossopropil)ammino)-2,4,6-triiodo |
| US7790141B2 (en) * | 2003-08-11 | 2010-09-07 | Pathak Holdings, Llc | Radio-opaque compounds, compositions containing same and methods of their synthesis and use |
| NZ581765A (en) | 2007-07-12 | 2012-03-30 | Ge Healthcare As | Triiodinated compounds used in diagnostic compositions as contrast agents in diagnostic imaging |
| US20100221191A1 (en) | 2007-10-12 | 2010-09-02 | Duncan George Wynn | Contrast agents |
| US20100221192A1 (en) | 2007-10-12 | 2010-09-02 | Duncan George Wynn | Contrast agents |
| ES2413160T3 (es) | 2007-10-12 | 2013-07-15 | Ge Healthcare As | Agentes de contraste |
| JP2011500533A (ja) | 2007-10-12 | 2011-01-06 | ジーイー・ヘルスケア・アクスイェ・セルスカプ | 造影剤 |
| JP2011500770A (ja) * | 2007-10-30 | 2011-01-06 | ジーイー・ヘルスケア・アクスイェ・セルスカプ | 造影剤 |
| US8445725B2 (en) * | 2008-01-14 | 2013-05-21 | Mallinckrodt Llc | Process for the preparation of iosimenol |
| WO2012136813A2 (en) | 2011-04-07 | 2012-10-11 | Universitetet I Oslo | Agents for medical radar diagnosis |
| EP3220887A1 (en) | 2014-11-21 | 2017-09-27 | Technical University of Denmark | Gel formulations for local drug release |
| KR102358040B1 (ko) | 2016-05-20 | 2022-01-28 | 테크니칼 유니버시티 오브 덴마크 | 촉진가능한 마커 조성물 |
| US20220339285A1 (en) | 2019-06-12 | 2022-10-27 | Technical University Of Denmark | Dissacharide formulations for controlled drug release |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2853424A (en) * | 1952-08-06 | 1958-09-23 | Schering Ag | X-ray contrast agents comprising symmetrical bifunctional analogs of nu-acyl derivatives of 2, 4, 6 triiodo-3-amino benzoic acid |
| US3178473A (en) * | 1962-03-02 | 1965-04-13 | Nyegaard & Co As | Process for the n-alkylation of acyl anilides halogen substituted in the nucleus |
| US3290366A (en) * | 1963-03-06 | 1966-12-06 | Mallinckrodt Chemical Works | 5-amino-nu-alkyl-2, 4, 6-triiodoisophthalamic acid derivatives |
| GB1033777A (en) * | 1963-06-06 | 1966-06-22 | Sterling Drug Inc | Bis-anilide derivatives |
| US3732293A (en) * | 1968-03-15 | 1973-05-08 | Sterling Drug Inc | Iodinated bis(aminobenzoic acids) and esters thereof |
| CH502104A (de) * | 1968-05-02 | 1971-01-31 | Bracco Ind Chimica Spa | Neue Röntgenkontrastmittel und Verfahren zu ihrer Herstellung |
| DE2031724C3 (de) * | 1969-06-27 | 1979-06-28 | Nyegaard & Co. A/S., Oslo | N-substituierte Trijodbenz- bzw. Jodmethansulfon-am'ide, Verfahren zu deren Herstellung und radiologische Zusammensetzungen |
| US3660464A (en) * | 1970-06-19 | 1972-05-02 | Squibb & Sons Inc | Tri-iodinated diaminobenzoic acid derivatives |
| BE787669A (fr) * | 1971-08-17 | 1973-02-19 | Schering Ag | Anilides d'acide n-methyl-dicarboxylique triiodes, et leur procede de preparation |
| DD104193A5 (enExample) * | 1972-12-22 | 1974-03-05 | ||
| DE2629228C2 (de) * | 1976-06-25 | 1984-10-18 | Schering AG, 1000 Berlin und 4709 Bergkamen | Jodierte Isophthalamsäure-Derivate Verfahren zu deren Herstellung sowie deren Verwendung |
| CH626873A5 (enExample) * | 1977-03-28 | 1981-12-15 | Bracco Ind Chimica Spa |
-
1976
- 1976-06-23 DE DE2628517A patent/DE2628517C2/de not_active Expired
-
1977
- 1977-05-18 NL NLAANVRAGE7705509,A patent/NL189510C/xx not_active IP Right Cessation
- 1977-06-16 DK DK266177A patent/DK150505C/da not_active IP Right Cessation
- 1977-06-16 FI FI771900A patent/FI67540C/fi not_active IP Right Cessation
- 1977-06-20 GB GB7222/80A patent/GB1588734A/en not_active Expired
- 1977-06-20 CS CS774059A patent/CS199680B2/cs unknown
- 1977-06-20 IE IE1249/77A patent/IE45225B1/en not_active IP Right Cessation
- 1977-06-20 PL PL1977199019A patent/PL108102B1/pl not_active IP Right Cessation
- 1977-06-20 GB GB25644/77A patent/GB1588733A/en not_active Expired
- 1977-06-21 IL IL52356A patent/IL52356A/xx unknown
- 1977-06-21 PT PT66690A patent/PT66690B/pt unknown
- 1977-06-21 CH CH761277A patent/CH629751A5/de not_active IP Right Cessation
- 1977-06-21 GR GR53760A patent/GR71696B/el unknown
- 1977-06-21 LU LU77588A patent/LU77588A1/xx unknown
- 1977-06-21 DD DD7700199616A patent/DD131014A5/xx unknown
- 1977-06-22 SU SU772498151A patent/SU917696A3/ru active
- 1977-06-22 HU HU77SCHE611A patent/HU174228B/hu unknown
- 1977-06-22 AU AU26325/77A patent/AU512304B2/en not_active Expired
- 1977-06-22 SE SE7707230A patent/SE436871B/xx not_active IP Right Cessation
- 1977-06-22 NO NO772202A patent/NO147447C/no unknown
- 1977-06-22 ES ES460007A patent/ES460007A1/es not_active Expired
- 1977-06-22 CA CA281,184A patent/CA1106400A/en not_active Expired
- 1977-06-23 AT AT443777A patent/AT361117B/de not_active IP Right Cessation
- 1977-06-23 BE BE178719A patent/BE856039A/xx not_active IP Right Cessation
- 1977-06-23 JP JP7489777A patent/JPS537637A/ja active Granted
- 1977-06-23 ZA ZA00773782A patent/ZA773782B/xx unknown
- 1977-06-23 IT IT7724994A patent/IT1237314B/it active
- 1977-06-23 FR FR7719234A patent/FR2355808A1/fr active Granted
-
1979
- 1979-01-12 US US06/002,901 patent/US4239747A/en not_active Expired - Lifetime
-
1980
- 1980-03-21 CA CA348,166A patent/CA1106401A/en not_active Expired
- 1980-06-18 IL IL60344A patent/IL60344A0/xx unknown
-
1981
- 1981-10-08 IE IE812351A patent/IE45226L/xx not_active IP Right Cessation
-
1982
- 1982-08-04 NO NO822674A patent/NO148811C/no unknown
-
1984
- 1984-12-12 DK DK595284A patent/DK165973C/da not_active IP Right Cessation
-
1985
- 1985-07-09 JP JP60149408A patent/JPS61126059A/ja active Granted
-
1993
- 1993-06-09 LU LU88292C patent/LU88292I2/de unknown
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| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19970619 |