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EP0080149

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Extract from the Register of European Patents

EP About this file: EP0080149

EP0080149 - Process for the preparation of phosphorous acids [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 11.11.1985 Database last updated on 11.04.2026
Most recent event Tooltip	11.11.1985	No opposition filed within time limit	published on 15.01.1986 [1986/03]
Applicant(s)	For all designated states HOECHST AKTIENGESELLSCHAFT 65926 Frankfurt am Main / DE
	[N/P]
Former [1983/22]	For all designated states HOECHST AKTIENGESELLSCHAFT D-65926 Frankfurt am Main / DE
Inventor(s)	01 / Kleiner, Hans-Jerg, Dr. Altkönigstrasse 11a D-6242 Kronberg/Taunus / DE
	02 / Neumaier, Hubert, Dr. Breslauer Strasse 76 D-5040 Brühl / DE
	[1983/22]
Application number, filing date	82110561.6	16.11.1982
	[1983/22]
Priority number, date	DE19813146196	21.11.1981 Original published format: DE 3146196
	[1983/22]
Filing language	DE
Procedural language	DE
Publication	Type:	A1 Application with search report
	No.:	EP0080149
	Date:	01.06.1983
	Language:	DE
	[1983/22]
	Type:	B1 Patent specification
	No.:	EP0080149
	Date:	09.01.1985
	Language:	DE
	[1985/02]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	16.03.1983
Classification	IPC:	C07F9/48	[1983/22]
	CPC:	C07F9/48 (EP,US)
Designated contracting states	BE, CH, DE, FR, GB, IT, LI, NL [1983/22]
Title	German:	Verfahren zur Herstellung phosphoniger Säuren	[1983/22]
	English:	Process for the preparation of phosphorous acids	[1983/22]
	French:	Procédé de préparation d'acides phosphoreux	[1983/22]
Examination procedure	25.06.1983	Examination requested [1983/35]
	14.03.1984	Despatch of a communication from the examining division (Time limit: M04)
	29.03.1984	Reply to a communication from the examining division
	28.05.1984	Despatch of communication of intention to grant (Approval: )
	20.06.1984	Communication of intention to grant the patent
	06.09.1984	Fee for grant paid
	06.09.1984	Fee for publishing/printing paid
Opposition(s)	10.10.1985	No opposition filed within time limit [1986/03]
Fees paid	Renewal fee
	10.10.1984	Renewal fee patent year 03
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	[A] Chemical Abstracts Band 92, Nr. 7, 18. Februar 1980, N.A. ANDREEV et al. "Synthesis and some properties of dialkylamidoalkyl-, cycloalkyl-, and arylphosphonous acid esters", Seite 687, linke Spalte, Abstract Nr. 58894k & Zh. Obshch. Khim. Band 49, Nr. 10, 1979, Seiten [A]

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