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: EP0546407

EP0546407 - Use of organo-functional polysiloxanes for modifying the surfaces of fine particles [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  07.06.1996
Database last updated on 11.09.2024
Most recent event   Tooltip07.06.1996No opposition filed within time limitpublished on 24.07.1996 [1996/30]
Applicant(s)For all designated states
Th. Goldschmidt AG
Goldschmidtstrasse 100
45127 Essen / DE
[N/P]
Former [1993/24]For all designated states
Th. Goldschmidt AG
Goldschmidtstrasse 100
D-45127 Essen / DE
Inventor(s)01 / Höhner, Werner
Finkenstrasse 34
W-5620 Velbert 11 / DE
02 / Schaefer, Dietmar, Dr.
Im Poth 12
W-4320 Hattingen / DE
[1993/24]
Application number, filing date92120402.028.11.1992
[1993/24]
Priority number, dateDE1991414079411.12.1991         Original published format: DE 4140794
[1993/24]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0546407
Date:16.06.1993
Language:DE
[1993/24]
Type: A3 Search report 
No.:EP0546407
Date:22.06.1994
Language:DE
[1994/25]
Type: B1 Patent specification 
No.:EP0546407
Date:02.08.1995
Language:DE
[1995/31]
Search report(s)(Supplementary) European search report - dispatched on:EP02.05.1994
ClassificationIPC:C09C3/12, C03C25/02
[1994/20]
CPC:
C03C25/40 (EP,US); C09C3/12 (EP,US); C01P2006/22 (US);
Y10T428/2962 (EP,US); Y10T428/2991 (EP,US); Y10T428/2995 (EP,US);
Y10T428/2998 (EP,US) (-)
Former IPC [1993/24]C09C3/12
Designated contracting statesBE,   DE,   ES,   FR,   GB,   IT,   NL [1993/24]
TitleGerman:Verwendung von organofunktionellen Polysiloxanen zum Modifizierten der Oberfläche feinteiliger Partikel[1993/24]
English:Use of organo-functional polysiloxanes for modifying the surfaces of fine particles[1993/24]
French:Utilisation de polysiloxanes organofonctionnels pour modifier les surfaces de fines particules[1993/24]
Examination procedure05.12.1992Examination requested  [1993/24]
10.01.1995Despatch of communication of intention to grant (Approval: Yes)
19.01.1995Communication of intention to grant the patent
21.03.1995Fee for grant paid
21.03.1995Fee for publishing/printing paid
Opposition(s)03.05.1996No opposition filed within time limit [1996/30]
Fees paidRenewal fee
15.11.1994Renewal 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[DA]EP0373426  (BAYER AG [DE]);
 [PA]EP0462389  (GOLDSCHMIDT AG TH [DE])
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.