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Extract from the Register of European Patents

EP About this file: EP1256823

EP1256823 - Polarized light separator, method of manufacturing the same, and projection display [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  22.02.2008
Database last updated on 22.01.2025
Most recent event   Tooltip22.02.2008Withdrawal of applicationpublished on 26.03.2008  [2008/13]
Applicant(s)For all designated states
Seiko Epson Corporation
4-1, Nishi-Shinjuku 2-chome
Shinjuku-ku
Tokyo 163-0811 / JP
[N/P]
Former [2002/46]For all designated states
SEIKO EPSON CORPORATION
4-1, Nishishinjuku 2-chome
Shinjuku-ku, Tokyo 163-0811 / JP
Inventor(s)01 / Hashizume, Toshiaki, c/o Seiko Epson Corporation
3-5,Owa 3-chome
Suwa-shi, Nagano-ken 392 / JP
02 / Itoh, Yoshitaka, c/o Seiko Epson Corporation
3-5,Owa 3-chome
Suwa-shi, Nagano-ken 392 / JP
03 / Yajima, Akitaka, c/o Seiko Epson Corporation
3-5,Owa 3-chome
Suwa-shi, Nagano-ken 392 / JP
 [2003/03]
Former [2002/46]01 / Hashizume, Toshiaki
Suwa-shi
Nagano-ken 392 / JP
02 / Itoh, Yoshitaka
Suwa-shi
Nagano-ken 392 / JP
03 / Yajima, Akitaka
Suwa-shi
Nagano-ken 392 / JP
Representative(s)Tothill, John Paul
Dehns
St Bride's House
10 Salisbury Square
London
EC4Y 8JD / GB
[N/P]
Former [2002/46]Tothill, John Paul
Frank B. Dehn & Co. 179 Queen Victoria Street
London EC4V 4EL / GB
Application number, filing date02018131.912.03.1997
[2002/46]
Priority number, dateJP1996005521512.03.1996         Original published format: JP 5521596
JP1996030113825.10.1996         Original published format: JP 30113896
[2002/46]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP1256823
Date:13.11.2002
Language:EN
[2002/46]
Type: A3 Search report 
No.:EP1256823
Date:19.05.2004
[2004/21]
Search report(s)(Supplementary) European search report - dispatched on:EP06.04.2004
ClassificationIPC:G02B27/28
[2004/21]
CPC:
G02B27/285 (EP,US); G02B27/28 (KR); G02B27/283 (EP,US);
G02B5/3025 (EP,US); G02B5/3041 (EP,US); H04N9/3105 (EP,US);
H04N9/3167 (EP,US); H04N5/7441 (EP,US) (-)
Former IPC [2002/46]G02B5/30, G02B27/28, G02F1/1335
Designated contracting statesDE,   FR,   GB,   NL [2002/46]
TitleGerman:Polarisationsstrahlteiler, Verfahren zu seiner Herstellung und Projektionsanzeige[2002/46]
English:Polarized light separator, method of manufacturing the same, and projection display[2002/46]
French:Séparateur de lumière polarisée, son procédé de production et affichage par projection[2002/46]
Examination procedure23.09.2004Examination requested  [2004/48]
13.01.2005Despatch of a communication from the examining division (Time limit: M06)
08.06.2005Reply to a communication from the examining division
16.05.2006Despatch of a communication from the examining division (Time limit: M04)
22.09.2006Reply to a communication from the examining division
14.02.2008Application withdrawn by applicant  [2008/13]
10.04.2008Date of oral proceedings
Parent application(s)   TooltipEP97907298.0  / EP0829739
Fees paidRenewal fee
14.08.2002Renewal fee patent year 03
14.08.2002Renewal fee patent year 04
14.08.2002Renewal fee patent year 05
14.08.2002Renewal fee patent year 06
28.03.2003Renewal fee patent year 07
29.03.2004Renewal fee patent year 08
24.03.2005Renewal fee patent year 09
22.03.2006Renewal fee patent year 10
23.03.2007Renewal fee patent year 11
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Documents cited:Search[X]JPH0682623  ;
 [A]JPS58194004  ;
 [X]DE935663  (JENAER GLASWERK SCHOTT & GEN) [X] 1-17 * column W *;
 [X]US2748659  (WALTER GEFFCKEN, et al) [X] 1-17 * column 5, line 73 - line 75 * * column 6, line 1 - line 16 * * figure - *;
 [X]US5096520  (FARIS SADES M [US]) [X] 1-17 * column W *;
 [X]US5221982  (FARIS SADEG M [US]) [X] 1-17 * column W *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19940623), vol. 018, no. 333, Database accession no. (P - 1759), & JP06082623 A 19940325 (NIPPON TELEGR & TELEPH CORP) [X] 1-17 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19840223), vol. 008, no. 042, Database accession no. (P - 256), & JP58194004 A 19831111 (TOUYOU TSUUSHINKI KK) [A] 1-17 * abstract *
ExaminationEP0359658
 EP0492636
 EP0508413
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.