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Extract from the Register of European Patents

EP About this file: EP0242188

EP0242188 - Method of making silicon nitride precursor [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  22.10.1992
Database last updated on 16.11.2024
Most recent event   Tooltip29.09.1993Lapse of the patent in a contracting state
New state(s): GB
published on 18.11.1993 [1993/46]
Applicant(s)For:GB 
Ford Motor Company Limited
Eagle Way Brentwood
Essex CM13 3BW / GB
For:FR 
FORD FRANCE SOCIETE ANONYME
344 Avenue Napoléon Bonaparte B.P. 307
92506 Rueil Malmaison Cedex / FR
For:DE 
FORD-WERKE AKTIENGESELLSCHAFT
Henry-Ford-Strasse 1
50725 Köln / DE
[N/P]
Former [1987/43]For:GB 
FORD MOTOR COMPANY LIMITED
Eagle Way
Brentwood, Essex CM13 3BW / GB
For:FR 
FORD FRANCE SOCIETE ANONYME
344 Avenue Napoléon Bonaparte B.P. 307
F-92506 Rueil Malmaison Cedex / FR
For:DE 
FORD-WERKE AKTIENGESELLSCHAFT
D-50725 Köln / DE
Inventor(s)01 / Crosbie, Gary Mark
1436 Culver Avenue
Dearborn Michigan 48124 / US
02 / Predmesky, Ronald Leonard
9220 Sioux
Redford Michigan 48239 / US
[1987/43]
Representative(s)Messulam, Alec Moses, et al
Harrison IP Limited
3 Ebor House
London Ebor Business Park
Millfield Lane
Nether Poppleton York YO26 6QY / GB
[N/P]
Former [1987/43]Messulam, Alec Moses, et al
A. Messulam & Co. 24 Broadway
Leigh on Sea Essex SS9 1BN / GB
Application number, filing date87303289.014.04.1987
[1987/43]
Priority number, dateUS1986085353918.04.1986         Original published format: US 853539
[1987/43]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0242188
Date:21.10.1987
Language:EN
[1987/43]
Type: A3 Search report 
No.:EP0242188
Date:01.06.1988
Language:EN
[1988/22]
Type: B1 Patent specification 
No.:EP0242188
Date:18.12.1991
Language:EN
[1991/51]
Search report(s)(Supplementary) European search report - dispatched on:EP12.04.1988
ClassificationIPC:C01B21/087
[1987/43]
CPC:
C01B21/068 (EP,US); C01B21/087 (EP,US)
Designated contracting statesDE,   FR,   GB [1987/43]
TitleGerman:Verfahren zum Herstellen eines Siliziumnitridrohstoffs[1987/43]
English:Method of making silicon nitride precursor[1987/43]
French:Procédé de préparation d'un précurseur de nitrure de silicium[1987/43]
File destroyed:12.06.1999
Examination procedure05.08.1988Examination requested  [1988/40]
16.01.1990Despatch of a communication from the examining division (Time limit: M04)
22.05.1990Reply to a communication from the examining division
01.03.1991Despatch of communication of intention to grant (Approval: Yes)
21.06.1991Communication of intention to grant the patent
10.07.1991Fee for grant paid
10.07.1991Fee for publishing/printing paid
Opposition(s)19.09.1992No opposition filed within time limit [1992/50]
Fees paidRenewal fee
03.04.1989Renewal fee patent year 03
15.03.1990Renewal fee patent year 04
25.03.1991Renewal fee patent year 05
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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  TooltipDE05.03.1992
GB14.04.1992
[1993/46]
Former [1992/33]DE05.03.1992
Documents cited:Search[A]JP5855315  ;
 [Y]US4405589  (IWAI TADASHI [JP], et al);
 [A]USRE31788E
 [Y]  - CHEM. BER, vol. 36, 1930, pages 4220-4228, M. BLIX und W. Wirbelauer: "Ueber das Siliciumsulfochlorid, SiSCl2, Siliciumimid, Si(NH)2, Siliciumstickstoffimid (Silicam), Si2N3H und den Siliciumstickstoff, Si3N4"
 [A]  - CHEMICAL ABSTRACTS OF JAPAN, vol. 99, no. 6, 1983, page 123, abstract no. 40624g, Columbus, Ohio, US; & JP-A-58 55 315 (TOYO SODA MFG. CO., LTD.) 01-04-1983, & JP5855315 A 00000000
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.