Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_535eb1a88ad1681aeaaf83380ac4b50b |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D279-30 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D279-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-20 |
filingDate |
1984-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
1985-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c86d4bdb097c639e095f0bb5de8f0712 |
publicationDate |
1985-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-4551740-A |
titleOfInvention |
Electrochromic and marking systems |
abstract |
3-(R-Carbonyloxy)-7-(N-R 1 -N-R 2 -amino)-10-(RCO)-phenothiazines useful as color formers, particularly in electrochromic recording systems, are prepared by the interaction of the corresponding 7-(N-R 1 -N-R 2 -amino)phenothiazin-3-one with a reducing agent to obtain the corresponding leuco compound and subsequently interacting the leuco compound with about two molecular proportions of an acylating agent. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5424183-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5432041-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8759336-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5583255-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9788035-B2 |
priorityDate |
1984-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |