IL25525A - 1,2,8,9-tetraazaphenalenes and their preparation - Google Patents
1,2,8,9-tetraazaphenalenes and their preparationInfo
- Publication number
- IL25525A IL25525A IL2552566A IL2552566A IL25525A IL 25525 A IL25525 A IL 25525A IL 2552566 A IL2552566 A IL 2552566A IL 2552566 A IL2552566 A IL 2552566A IL 25525 A IL25525 A IL 25525A
- Authority
- IL
- Israel
- Prior art keywords
- tetraazaphenalene
- physiologically acceptable
- acid addition
- acceptable acid
- hydrazino
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title description 4
- DNPVEBBFVJUASY-UHFFFAOYSA-N ctk0i2885 Chemical class N1N=CC2=CC=CC3=CN=NC1=C32 DNPVEBBFVJUASY-UHFFFAOYSA-N 0.000 title description 2
- 150000003839 salts Chemical class 0.000 claims description 17
- -1 cinnamylidene Chemical group 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 8
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 150000007522 mineralic acids Chemical class 0.000 claims description 4
- 150000007524 organic acids Chemical class 0.000 claims description 4
- 125000004442 acylamino group Chemical group 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims description 3
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 3
- 125000004663 dialkyl amino group Chemical group 0.000 claims description 3
- 125000005843 halogen group Chemical group 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 3
- 239000004480 active ingredient Substances 0.000 claims description 2
- 239000003937 drug carrier Substances 0.000 claims 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims 1
- 239000008194 pharmaceutical composition Substances 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 43
- 239000000203 mixture Substances 0.000 description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 20
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 18
- 238000010992 reflux Methods 0.000 description 15
- 239000000243 solution Substances 0.000 description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
- 238000003756 stirring Methods 0.000 description 13
- 239000000047 product Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 10
- 235000017557 sodium bicarbonate Nutrition 0.000 description 10
- 239000007787 solid Substances 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 8
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 229960000443 hydrochloric acid Drugs 0.000 description 6
- 235000011167 hydrochloric acid Nutrition 0.000 description 6
- 238000001953 recrystallisation Methods 0.000 description 6
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- 239000012458 free base Substances 0.000 description 4
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 4
- 229960000583 acetic acid Drugs 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 150000007857 hydrazones Chemical class 0.000 description 3
- WHQSYGRFZMUQGQ-UHFFFAOYSA-N n,n-dimethylformamide;hydrate Chemical compound O.CN(C)C=O WHQSYGRFZMUQGQ-UHFFFAOYSA-N 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- CQVKMVQRSNNAGO-UHFFFAOYSA-N 2-[4-formyl-3-methyl-n-(2-methylsulfonyloxyethyl)anilino]ethyl methanesulfonate Chemical compound CC1=CC(N(CCOS(C)(=O)=O)CCOS(C)(=O)=O)=CC=C1C=O CQVKMVQRSNNAGO-UHFFFAOYSA-N 0.000 description 2
- TWWAWPHAOPTQEU-UHFFFAOYSA-N 4-methyl-2-benzofuran-1,3-dione Chemical compound CC1=CC=CC2=C1C(=O)OC2=O TWWAWPHAOPTQEU-UHFFFAOYSA-N 0.000 description 2
- 239000004342 Benzoyl peroxide Substances 0.000 description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 239000000538 analytical sample Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 description 2
- 125000000649 benzylidene group Chemical group [H]C(=[*])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 229940093915 gynecological organic acid Drugs 0.000 description 2
- OLNJUISKUQQNIM-UHFFFAOYSA-N indole-3-carbaldehyde Chemical compound C1=CC=C2C(C=O)=CNC2=C1 OLNJUISKUQQNIM-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- CYQAYERJWZKYML-UHFFFAOYSA-N phosphorus pentasulfide Chemical compound S1P(S2)(=S)SP3(=S)SP1(=S)SP2(=S)S3 CYQAYERJWZKYML-UHFFFAOYSA-N 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 2
- 239000003826 tablet Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- LGXJGXQUZYEMCL-UHFFFAOYSA-N (4-benzylidene-2,3,11,12-tetrazatricyclo[7.3.1.05,13]trideca-1(13),2,5,7,9,11-hexaen-6-yl)hydrazine Chemical compound C(C1=CC=CC=C1)=C1N=NC=2N=NC=C3C=CC(=C1C23)NN LGXJGXQUZYEMCL-UHFFFAOYSA-N 0.000 description 1
- KJPRLNWUNMBNBZ-QPJJXVBHSA-N (E)-cinnamaldehyde Chemical compound O=C\C=C\C1=CC=CC=C1 KJPRLNWUNMBNBZ-QPJJXVBHSA-N 0.000 description 1
- AVLFQFQAMCEOPJ-UHFFFAOYSA-N 2,3,11,12-tetrazatricyclo[7.3.1.05,13]trideca-1(13),2,4,6,8,11-hexaene Chemical compound C1N=NC2=NN=CC3=CC=CC1=C23 AVLFQFQAMCEOPJ-UHFFFAOYSA-N 0.000 description 1
- SOMQAIAICJTERE-UHFFFAOYSA-N 2,3,11,12-tetrazatricyclo[7.3.1.05,13]trideca-1,5,7,9(13),10-pentaene-4-thione Chemical compound SC1=NNC=2N=NC=C3C=CC=C1C23 SOMQAIAICJTERE-UHFFFAOYSA-N 0.000 description 1
- CSDSSGBPEUDDEE-UHFFFAOYSA-N 2-formylpyridine Chemical compound O=CC1=CC=CC=N1 CSDSSGBPEUDDEE-UHFFFAOYSA-N 0.000 description 1
- ZETIVVHRRQLWFW-UHFFFAOYSA-N 3-nitrobenzaldehyde Chemical compound [O-][N+](=O)C1=CC=CC(C=O)=C1 ZETIVVHRRQLWFW-UHFFFAOYSA-N 0.000 description 1
- SKLUWKYNZNXSLX-UHFFFAOYSA-N 4-Acetamidobenzaldehyde Chemical compound CC(=O)NC1=CC=C(C=O)C=C1 SKLUWKYNZNXSLX-UHFFFAOYSA-N 0.000 description 1
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 206010067482 No adverse event Diseases 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- RGSQKHGIBGKBQB-UHFFFAOYSA-N ac1l1mb5 Chemical compound N1N=CC2=CC=CC3=C2C1=NN=C3NN RGSQKHGIBGKBQB-UHFFFAOYSA-N 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000002220 antihypertensive agent Substances 0.000 description 1
- 150000003934 aromatic aldehydes Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000031709 bromination Effects 0.000 description 1
- 238000005893 bromination reaction Methods 0.000 description 1
- 230000005792 cardiovascular activity Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 229940117916 cinnamic aldehyde Drugs 0.000 description 1
- KJPRLNWUNMBNBZ-UHFFFAOYSA-N cinnamic aldehyde Natural products O=CC=CC1=CC=CC=C1 KJPRLNWUNMBNBZ-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- ZKQFHRVKCYFVCN-UHFFFAOYSA-N ethoxyethane;hexane Chemical compound CCOCC.CCCCCC ZKQFHRVKCYFVCN-UHFFFAOYSA-N 0.000 description 1
- MDKXBBPLEGPIRI-UHFFFAOYSA-N ethoxyethane;methanol Chemical compound OC.CCOCC MDKXBBPLEGPIRI-UHFFFAOYSA-N 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- OOYSIJOALGFFAE-UHFFFAOYSA-N methanol;propane-1,2-diol Chemical compound OC.CC(O)CO OOYSIJOALGFFAE-UHFFFAOYSA-N 0.000 description 1
- WWECJGLXBSQKRF-UHFFFAOYSA-N n,n-dimethylformamide;methanol Chemical compound OC.CN(C)C=O WWECJGLXBSQKRF-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- NBJBFKVCPBJQMR-APKOLTMOSA-N nff 1 Chemical compound C([C@H](NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@@H]1CCCN1C(=O)[C@H](CCCCN)NC(=O)[C@@H]1CCCN1C(=O)CC=1C2=CC=C(C=C2OC(=O)C=1)OC)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)NCC(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCCNC=1C(=CC(=CC=1)[N+]([O-])=O)[N+]([O-])=O)C(=O)NCC(O)=O)C1=CC=CC=C1 NBJBFKVCPBJQMR-APKOLTMOSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001624 sedative effect Effects 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/06—Peri-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Plural Heterocyclic Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Central Air Conditioning (AREA)
- Indole Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44576265A | 1965-04-05 | 1965-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL25525A true IL25525A (en) | 1970-04-20 |
Family
ID=23770102
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL2552466A IL25524A (en) | 1965-04-05 | 1966-04-04 | 1,2,8,9-tetraazaphenalenes and their preparation |
| IL2552666A IL25526A (en) | 1965-04-05 | 1966-04-04 | 1,2,8,9-tetraazaphenalenes and their preparation |
| IL2552566A IL25525A (en) | 1965-04-05 | 1966-04-04 | 1,2,8,9-tetraazaphenalenes and their preparation |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL2552466A IL25524A (en) | 1965-04-05 | 1966-04-04 | 1,2,8,9-tetraazaphenalenes and their preparation |
| IL2552666A IL25526A (en) | 1965-04-05 | 1966-04-04 | 1,2,8,9-tetraazaphenalenes and their preparation |
Country Status (12)
-
1966
- 1966-04-04 NL NL6604482A patent/NL6604482A/xx unknown
- 1966-04-04 GB GB1476366A patent/GB1138242A/en not_active Expired
- 1966-04-04 DK DK174666A patent/DK119504B/da unknown
- 1966-04-04 SE SE448766A patent/SE323689B/xx unknown
- 1966-04-04 SE SE448666A patent/SE317387B/xx unknown
- 1966-04-04 NL NL6604484A patent/NL6604484A/xx unknown
- 1966-04-04 ES ES0325113A patent/ES325113A1/es not_active Expired
- 1966-04-04 ES ES0325111A patent/ES325111A1/es not_active Expired
- 1966-04-04 AT AT318466A patent/AT259568B/de active
- 1966-04-04 AT AT318566A patent/AT265297B/de active
- 1966-04-04 NO NO16245266A patent/NO118493B/no unknown
- 1966-04-04 IL IL2552466A patent/IL25524A/en unknown
- 1966-04-04 NO NO16245066A patent/NO121495B/no unknown
- 1966-04-04 IL IL2552666A patent/IL25526A/xx unknown
- 1966-04-04 DK DK174766A patent/DK119313B/da unknown
- 1966-04-04 GB GB1476266A patent/GB1138753A/en not_active Expired
- 1966-04-04 IL IL2552566A patent/IL25525A/en unknown
- 1966-04-04 AT AT318366A patent/AT264530B/de active
- 1966-04-04 GB GB1476466A patent/GB1144881A/en not_active Expired
- 1966-04-04 SE SE242470A patent/SE350263B/xx unknown
- 1966-04-04 SE SE1195568A patent/SE318284B/xx unknown
- 1966-04-04 ES ES0325109A patent/ES325109A1/es not_active Expired
- 1966-04-04 ES ES0325110A patent/ES325110A1/es not_active Expired
- 1966-04-04 DE DE19661695065 patent/DE1695065A1/de active Pending
- 1966-04-04 SE SE448566A patent/SE323688B/xx unknown
- 1966-04-04 NL NL6604483A patent/NL6604483A/xx unknown
- 1966-04-04 DE DE19661695066 patent/DE1695066A1/de active Pending
- 1966-04-04 NO NO162451A patent/NO118492B/no unknown
- 1966-04-04 ES ES0325112A patent/ES325112A1/es not_active Expired
- 1966-04-04 DE DE19661695064 patent/DE1695064A1/de active Pending
- 1966-04-04 DK DK174866A patent/DK120240B/da unknown
- 1966-04-05 CH CH486066A patent/CH483432A/de not_active IP Right Cessation
- 1966-04-05 CH CH486166A patent/CH475994A/de not_active IP Right Cessation
- 1966-04-05 BE BE679047D patent/BE679047A/xx unknown
- 1966-04-05 CH CH486266A patent/CH481122A/de not_active IP Right Cessation
- 1966-04-05 BE BE679045D patent/BE679045A/xx unknown
- 1966-04-05 BE BE679046D patent/BE679046A/xx unknown
- 1966-07-04 FR FR68073A patent/FR5595M/fr not_active Expired
-
1970
- 1970-02-25 SE SE02423/70A patent/SE350262B/xx unknown
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