Color test meter
Abstract
A colorimeter for converting a color output to an electrical signal, comprising a color chart (46) for comparing with a color (52, 54) which is to be converted, means (110) for generating an electrical signal which corresponds to a favorable comparison of the color to the color chart, and means (14) for locating the colors of the chart with respect to the means for generating an electrical signal so that the means for generating an electrical signal is conventiently located to be actuated when the color which is to be converted approximates a color on the chart, the means for generating an electrical signal comprising a plurality of switches (96-102), each having two states, means (112) responsive to the states of the switches for providing the electrical signal which corresponds to a favorable comparison of the color to the color chart, and means for coupling the electrical switches to the means for combining the states of the switches.

Term
Term ended
Projected expiry passed 17 April 2009, 17.4 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
2 sheets
Sheet 1 Sheet 2
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0183524A2 | Cites | European Patent Office (EPO) | A | Search report |
| US2058073A | Cites | United States of America | A | Search report |
| US3176577A | Cites | United States of America | A | Search report |
| DE3428630A1 | Cites | Germany | A | Search report |
15 members in 9 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 187857 | United States of America | – | |
| 18785788 | United States of America | A | |
| 18785788 | United States of America | A | |
| US19880187857 | – | – | – |
Members15
| Document | Office | Kind | |
|---|---|---|---|
| US4871258A | United States of America | A | |
| AU2773689A | Australia | A | |
| EP0339850A2 | European Patent Office (EPO) | A2 | |
| JPH01292224A | Japan | A | |
| KR890016367A | Republic of Korea | A | |
| EP0339850A3This record | European Patent Office (EPO) | A3 | |
| AU618705B2 | Australia | B2 | |
| CA1315123C | Canada | C | |
| EP0339850B1 | European Patent Office (EPO) | B1 | |
| AT144323T | Austria | T | |
| ATE144323T1 | Austria | T1 | |
| DE68927330D1 | Germany | D1 | |
| ES2094122T3 | Spain | T3 | |
| DE68927330T2 | Germany | T2 | |
| KR970010929B1 | Republic of Korea | B1 |
43 legal events, as 5 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Announcement of lapse in spainLapsedFD2A | FD2A | ES | |
| Patent expired after termination of 20 yearsExpiredPE20 | PE20 | GB | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| European patent in force as of 2002-01-01IF02 | IF02 | GB | |
| Transfer of patentPC2A | PC2A | ES | |
| Change of name or company nameCD | CD | FR | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Patent ceasedCeasedPL | PL | CH | |
| Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents actLapsedNLV1 | NLV1 | EP | |
| Definitive protectionFG2A | FG2A | ES | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| Fr: translation filedET | ET | EP | |
| Corresponds to:REF | REF | EP | |
| Designated contracting statesAK | AK | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Corresponds to:REF | REF | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOS IGRAGRAH | GRAH | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOS IGRAGRAH | GRAH | EP | |
| Despatch of communication of intention to grantORIGINAL CODE: EPIDOS AGRAGRAG | GRAG | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for examination filed17P | 17P | EP | |
| Main classification (correction)RHK1 | RHK1 | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 0339850
- Publication, DOCDB
- 0339850
- Publication, EPODOC
- EP0339850
- Application
- 303795
- Application, DOCDB
- 89303795
- Application, EPODOC
- EP19890303795
Titles3
- German
- Farbentestmesser
- English
- Color test meter
- French
- Dispositif de mesure de test colorimétrique
Classification
- CPC, 9
- G01N21/8483
- G01J1/00
- G01J2003/466
- G01N21/293
- G01N21/78
- G01N2021/0181
- G01N2021/478
- G01N21/25
- G01N3/52
- IPC, 7
- G01J3 52
- G01J3 46
- G01N21 01
- G01N21 29
- G01N21 78
- G01N21 86
- G01N33 66
Designated states1
- Contracting states, 1
- Sweden