| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4fb04b3b12fe9b2e4e71726acf1ded1c |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M3-142
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-327 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B42D15-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-327
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D11-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G07D7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B42D15-00 |
| filingDate |
2001-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2003-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4af5efe267dd838e25b1884cf08d96c |
| publicationDate |
2003-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1278642-B1 |
| titleOfInvention |
Recording materials with temporarily effective security feature. |
| abstract |
A recording material has a temporary authentification mark comprising a substance which reacts with a developing agent to form a color, the substance being a substituted phthalide which reacts on contact with an alkaline developing agent containing a volatile solvent. Alternatively, the substance is of alkali salts and the developer contains a substituted phthalide in a volatile solvent. An independent claim is also included for a printing ink giving such a mark. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108410253-A |
| priorityDate |
2000-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |