blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP1055143

EP1055143 - CASCADING OF TUNABLE OPTICAL FILTER ELEMENTS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  22.10.2004
Database last updated on 30.09.2024
Most recent event   Tooltip28.03.2008Lapse of the patent in a contracting statepublished on 30.04.2008  [2008/18]
Applicant(s)For all designated states
E. I. du Pont de Nemours and Company
1007 Market Street
Wilmington, DE 19898 / US
[N/P]
Former [2004/36]For all designated states
E.I. Du Pont de Nemours and Company
Legal Patents Barley Mill Plaza 25
Wilmington, Delaware 19880-0025 / US
Former [2000/48]For all designated states
CORNING INCORPORATED
1 Riverfront Plaza
Corning, N.Y. 14831 / US
Inventor(s)01 / NORWOOD, Robert, A.
203 North Union Avenue
Cranford, NJ 07016 / US
02 / SOSSEN, David, W.
23 Smithfield Drive
Basking Ridge, NJ 07920 / US
03 / RUDASILL, Meade, H.
4 Ursula Court
Mendham, NJ 07945 / US
[2000/48]
Representative(s)Boon, Graham Anthony
Elkington and Fife LLP
Prospect House
8 Pembroke Road
Sevenoaks
Kent TN13 1XR / GB
[N/P]
Former [2000/48]Boon, Graham Anthony
Elkington and Fife, Prospect House, 8 Pembroke Road
Sevenoaks, Kent TN13 1XR / GB
Application number, filing date99934345.222.02.1999
[2000/48]
WO1999US03853
Priority number, dateUS19980075512P20.02.1998         Original published format: US 75512 P
US1999025189319.02.1999         Original published format: US 251893
[2000/48]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9942875
Date:26.08.1999
Language:EN
[1999/34]
Type: A1 Application with search report 
No.:EP1055143
Date:29.11.2000
Language:EN
The application published by WIPO in one of the EPO official languages on 26.08.1999 takes the place of the publication of the European patent application.
[2000/48]
Type: B1 Patent specification 
No.:EP1055143
Date:17.12.2003
Language:EN
[2003/51]
Search report(s)International search report - published on:EP26.08.1999
ClassificationIPC:G02B6/34, G02F1/01
[2000/48]
CPC:
G02B6/29362 (EP); G02B6/29395 (EP); G02F1/0147 (EP);
G02F1/212 (EP); G02F2201/06 (EP); G02F2201/307 (EP)
Designated contracting statesDE,   FR,   GB,   IT [2000/48]
TitleGerman:HINTEREINANDERSCHALTUNG VON ABSTIMMBAREN OPTISCHEN FILTERELEMENTEN[2000/48]
English:CASCADING OF TUNABLE OPTICAL FILTER ELEMENTS[2000/48]
French:MONTAGE EN CASCADE D'ELEMENTS DE FILTRE OPTIQUES ACCORDABLES[2000/48]
Entry into regional phase14.09.2000National basic fee paid 
14.09.2000Designation fee(s) paid 
14.09.2000Examination fee paid 
Examination procedure17.09.1999Request for preliminary examination filed
International Preliminary Examining Authority: EP
14.09.2000Examination requested  [2000/48]
04.07.2003Communication of intention to grant the patent
08.10.2003Fee for grant paid
08.10.2003Fee for publishing/printing paid
Opposition(s)20.09.2004No opposition filed within time limit [2004/50]
Fees paidRenewal fee
05.02.2001Renewal fee patent year 03
04.02.2002Renewal fee patent year 04
06.02.2003Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court
See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipIT17.12.2003
[2008/18]
Cited inInternational search[Y]JPS61151603  ;
 [Y]US4632517  (ASHER SANFORD A [US]) [Y] 8 * column 2, line 5 - line 42 * * column 9, line 56 - column 10, line 64; figures 1,10 *;
 [Y]US5103332  (KANEKO SHUZO [JP], et al) [Y] 5 * column 1, line 62 - column 2, line 29 * * column 9, line 26 - line 39; figure 8 *;
 [A]US5671307  (LAUZON JOCELYN [CA], et al) [A] 3,6,7 * column 2, line 1 - line 11 * * column 3, line 41 - column 4, line 31; figure 1 * * column A *;
 [Y]US5706375  (MIHAILOV STEPHEN J [CA], et al) [Y] 7 * column 3, line 54 - column 4, line 65; figures 1-7 *;
 [XY]WO9804954  (ITALTEL SPA [IT], et al) [X] 1,2,4,6,10 * page 9, line 6 - page 10, line 25 * * page 12, line 9 - page 17, line 14; figures 5,6,10,13; claim 1 * [Y] 5,7-9;
 [A]WO9807058  (CORNING INC [US]) [A] 2* the whole document *
 [Y]  - PATENT ABSTRACTS OF JAPAN, (19861127), vol. 010, no. 351, Database accession no. (P - 520), & JP61151603 A 19860710 (MITSUBISHI ELECTRIC CORP) [Y] 9 * abstract *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.