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EP About this file: EP0631157

EP0631157 - Imaging and colour/polarisation selecting reflective optical element containing cholesteric liquid crystals, and manufacture and use of the same [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 23.05.1997 Database last updated on 13.07.2024
Most recent event Tooltip	23.05.1997	No opposition filed within time limit	published on 09.07.1997 [1997/28]
Applicant(s)	For all designated states Consortium für elektrochemische Industrie GmbH Zielstattstrasse 20 81379 München / DE
	[N/P]
Former [1994/52]	For all designated states Consortium für elektrochemische Industrie GmbH Zielstattstrasse 20 D-81379 München / DE
Inventor(s)	01 / Maurer, Robert, Dr. Danklstrasse 7 D-81371 München / DE
	02 / Beiergrösslein, Stefan Ramsauer Strasse 3a D-81379 München / DE
	03 / Kreuzer, Franz-Heinrich, Dr. Josef-Gerstner-Strasse 15 D-82152 Martinsried / DE
	[1995/11]
Former [1994/52]	01 / Maurer, Robert, Dr. Danklstrasse 7 D-81371 München / DE
	02 / Beiergrösslein, Stefan Eintrachtstrasse 6 D-81541 München / DE
	03 / Kreuzer, Franz-Heinrich, Dr. Josef-Gerstner-Strasse 15 D-82152 Martinsried / DE
Application number, filing date	94113300.1	25.08.1994
	[1994/52]
Priority number, date	DE19934328785	26.08.1993 Original published format: DE 4328785
	[1994/52]
Filing language	DE
Procedural language	DE
Publication	Type:	A1 Application with search report
	No.:	EP0631157
	Date:	28.12.1994
	Language:	DE
	[1994/52]
	Type:	B1 Patent specification
	No.:	EP0631157
	Date:	17.07.1996
	Language:	DE
	[1996/29]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	13.10.1994
Classification	IPC:	G02B5/30, G02F1/00	[1994/52]
	CPC:	H04N9/3105 (EP,US); G02F1/1335 (KR); G02B27/283 (EP,US); G02B5/3016 (EP,US); G02F1/0063 (EP,US); G02F2201/343 (EP,US)
Designated contracting states	DE, FR, GB, IT, NL [1994/52]
Title	German:	Optische Elemente mit abbildender farb- und polarisationsselektiver Reflexion enthaltend cholesterische Flüssigkristalle sowie Herstellung und Verwendung dieser Elemente	[1994/52]
	English:	Imaging and colour/polarisation selecting reflective optical element containing cholesteric liquid crystals, and manufacture and use of the same	[1994/52]
	French:	Elément optique de formation d'images sélectionnant la polarisation et la couleur contenant des cristaux liquides cholestériques, leur préparation et utilisation	[1994/52]
Examination procedure	25.08.1994	Examination requested [1994/52]
	25.08.1994	Request for accelerated examination filed
	19.01.1995	Despatch of a communication from the examining division (Time limit: M04)
	19.01.1995	Decision about request for accelerated examination - accepted: Yes
	11.05.1995	Reply to a communication from the examining division
	07.09.1995	Despatch of communication of intention to grant (Approval: Yes)
	10.01.1996	Communication of intention to grant the patent
	04.04.1996	Fee for grant paid
	04.04.1996	Fee for publishing/printing paid
Opposition(s)	18.04.1997	No opposition filed within time limit [1997/28]
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.
Documents cited:	Search	[YA]JPH01200325 ;
		[DYA]US3679290 (ADAMS JAMES E, et al) [DY] 1 * column W * [DA] 6;
		[DA]US4679911 (JACOBS STEPHEN D [US], et al) [DA] 1,4,9,10 * column W *;
		[DA]EP0302619 (KAISER AEROSPACE & ELECTRONICS [US]) [DA] 1,6-8* the whole document *;
		[DA]EP0348141 (KAISER AEROSPACE & ELECTRONICS [US]) [DA] 1 * the whole document *;
		[A]EP0407830 (HOFFMANN LA ROCHE [CH], et al) [A] 1,2,4-8 * the whole document *;
		[YA] - PATENT ABSTRACTS OF JAPAN, (19891110), vol. 13, no. 499, Database accession no. (P - 957), & JP01200325 A 19890811 (EMIKO MORIMOTO) [Y] 1 * abstract * [A] 4,9,10
		[DA] - SCHADT ET AL, "New Liquid Crystal Polarized Color Projection Principle", JAPANESE JOURNAL OF APPLIED PHYSICS, TOKYO JP, (199010), vol. 29, no. 10, doi:doi:10.1143/JJAP.29.1974, pages 1974 - 1984, XP000223990 [DA] 1,6-8 * the whole document * DOI: http://dx.doi.org/10.1143/JJAP.29.1974

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