A secure electronic mail system
Abstract
A system and method for transferring messages securely over a computer network which includes the steps of inputting the message to be transmitted at a first device and then encrypting the message at the first device. An address for a dynamically addressed server is obtained and the first device is connected to the dynamically addressed server. The encrypted message is transmitted from the first device to the server and the message is received at the dynamically addressed server. The message is transmitted from the server to a second device and then the message is decrypted at the second device.

Term
Term ended
Projected expiry passed 16 November 2019, 6.9 years ago.
- Priority
- Filed
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- Projected expiry
- Today
1 sheet
Sheet 1
44 members in 4 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 239425 | United States of America | – | |
| 23942599 | United States of America | A | |
| 23942599 | United States of America | A | |
| 239425 | – | – | – |
| US19990239425 | – | – | – |
Members44
| Document | Office | Kind | |
|---|---|---|---|
| EP0844563A1 | European Patent Office (EPO) | A1 | |
| US5970149A | United States of America | A | |
| EP1024630A2 | European Patent Office (EPO) | A2 | |
| EP1032159A2 | European Patent Office (EPO) | A2 | |
| US2001047471A1 | United States of America | A1 | |
| US2002016912A1 | United States of America | A1 | |
| EP1032159A3 | European Patent Office (EPO) | A3 | |
| EP1024630A3This record | European Patent Office (EPO) | A3 | |
| US6499108B1 | United States of America | B1 | |
| EP0844563B1 | European Patent Office (EPO) | B1 | |
| EP1282036A2 | European Patent Office (EPO) | A2 | |
| AT231994T | Austria | T | |
| ATE231994T1 | Austria | T1 | |
| DE69718754D1 | Germany | D1 | |
| EP1300746A2 | European Patent Office (EPO) | A2 | |
| US6578146B2 | United States of America | B2 | |
| US2003200469A1 | United States of America | A1 | |
| DE69718754T2 | Germany | T2 | |
| US2004006702A1 | United States of America | A1 | |
| EP1486864A2 | European Patent Office (EPO) | A2 | |
| EP1619843A1 | European Patent Office (EPO) | A1 | |
| EP1024630B1 | European Patent Office (EPO) | B1 | |
| AT323993T | Austria | T | |
| ATE323993T1 | Austria | T1 | |
| DE69930919D1 | Germany | D1 | |
| US7080260B2 | United States of America | B2 | |
| DE69930919T2 | Germany | T2 | |
| US2006236406A1 | United States of America | A1 | |
| US2007157294A1 | United States of America | A1 | |
| US2007192556A1 | United States of America | A1 | |
| US7293179B2 | United States of America | B2 | |
| EP1282036A3 | European Patent Office (EPO) | A3 | |
| EP1300746A3 | European Patent Office (EPO) | A3 | |
| EP1486864A3 | European Patent Office (EPO) | A3 | |
| US2008034225A1 | United States of America | A1 | |
| EP1980939A1 | European Patent Office (EPO) | A1 | |
| US7653821B2 | United States of America | B2 | |
| US7814338B2 | United States of America | B2 | |
| US7823191B2 | United States of America | B2 | |
| EP1619843B1 | European Patent Office (EPO) | B1 | |
| AT492968T | Austria | T | |
| ATE492968T1 | Austria | T1 | |
| DE69943069D1 | Germany | D1 | |
| EP1282036B1 | European Patent Office (EPO) | B1 |
49 legal events, as 5 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Patent ceasedCeasedPL | PL | CH | |
| Expiry of rightR071 | R071 | DE | |
| Change of representativeR082 | R082 | DE | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Name/firm changedPFA | PFA | CH | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Change of representativeR082 | R082 | DE | |
| Change of representativeR082 | R082 | DE | |
| 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 | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Fr: translation not filedEN | EN | EP | |
| 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 | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents actLapsedNLV1 | NLV1 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| New agentNV | NV | CH | |
| 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 | |
| European patents granted designating irelandGrantedFG4D | FG4D | IE | |
| Corresponds to:REF | REF | EP | |
| Designated contracting statesAK | AK | EP | |
| European patent grantedGrantedFG4D | FG4D | GB | |
| 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 | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Designation fees paidAKX | AKX | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAL;LT;LV;MK;RO;SIAX | AX | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAL;LT;LV;MK;RO;SIAX | AX | 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
- 1024630
- Publication, DOCDB
- 1024630
- Publication, EPODOC
- EP1024630
- Application
- 99122733
- Application, DOCDB
- 99122733
- Application, EPODOC
- EP19990122733
Titles3
- German
- Gesichertes elektronische Postsystem
- English
- A secure electronic mail system
- French
- Système sécurisé de courrier électronique
Classification
- CPC, 8
- H04L63/062
- G06F11/2294
- H04L63/068
- H04L63/083
- H04L63/18
- H04L61/4511
- H04L61/00
- H04L51/48
- IPC, 3
- G06F11 273
- H04L29 06
- H04L29 12
Designated states25
- Contracting states, 19
- Austria
- Belgium
- Switzerland
- Cyprus
- Germany
- Denmark
- Spain
- Finland
- France
- United Kingdom
- Greece
- Ireland
- Italy
- Liechtenstein
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Portugal
- Sweden
- Extension states, 6
- Albania
- Lithuania
- Latvia
- North Macedonia
- Romania
- Slovenia