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Extract from the Register of European Patents

EP About this file: EP0224319

EP0224319 - Stable silanol priming solution for use in dentistry [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  11.09.1998
Database last updated on 17.09.2024
Most recent event   Tooltip17.04.2015Change - lapse in a contracting state
State(s) deleted from list of lapses: CH, LI
published on 20.05.2015  [2015/21]
Applicant(s)For all designated states
MINNESOTA MINING AND MANUFACTURING COMPANY
3M Center, P.O. Box 33427
St. Paul, MN 55133-3427 / US
[N/P]
Former [1987/23]For all designated states
MINNESOTA MINING AND MANUFACTURING COMPANY
3M Center, P.O. Box 33427
St. Paul, Minnesota 55133-3427 / US
Inventor(s)01 / Culler, Scott R. Minnesota Mining and
Manufacturing Co. 2501 Hudson Road P.O. Box 33427
St. Paul Minnesota 55133-3427 / US
[1987/23]
Representative(s)Rauh, Peter, et al
Vossius & Partner
postfach 86 07 67
81634 München / DE
[N/P]
Former [1993/32]Rauh, Peter A., Dr., et al
Vossius & Partner, Postfach 86 07 67
D-81634 München / DE
Former [1987/23]Baillie, Iain Cameron
c/o Ladas & Parry Altheimer Eck 2
D-80331 München / DE
Application number, filing date86305947.301.08.1986
[1987/23]
Priority number, dateUS1985078242801.10.1985         Original published format: US 782428
[1987/23]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0224319
Date:03.06.1987
Language:EN
[1987/23]
Type: B1 Patent specification 
No.:EP0224319
Date:29.01.1992
Language:EN
[1992/05]
Search report(s)(Supplementary) European search report - dispatched on:EP12.02.1987
ClassificationIPC:A61K6/00
[1987/23]
CPC:
A61K6/76 (EP,US)
C-Set:
A61K6/30, C08L25/08 (US,EP);
A61K6/30, C08L33/08 (EP,US);
A61K6/30, C08L33/10 (US,EP);
A61K6/30, C08L33/14 (US,EP);
A61K6/30, C08L83/04 (US,EP)
(-)
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1987/23]
TitleGerman:Stabiles Silanolhaftgrundmittel zur Verwendung in der Zahnheilkunde[1987/23]
English:Stable silanol priming solution for use in dentistry[1987/23]
French:Solution stable d'apprêt à base de silanol pour utilisation en dentisterie[1987/23]
Examination procedure05.11.1986Request for decision received: division
03.12.1986Result of request for decision (division): Request rejected
30.04.1987Examination requested  [1987/27]
02.08.1990Despatch of a communication from the examining division (Time limit: M06)
06.02.1991Reply to a communication from the examining division
27.03.1991Despatch of communication of intention to grant (Approval: Yes)
31.07.1991Communication of intention to grant the patent
12.08.1991Fee for grant paid
12.08.1991Fee for publishing/printing paid
Appeal following examination26.01.1987Appeal received No.  J0015/87
26.03.1987Statement of grounds filed
22.01.1988Invitation to file observations in an appeal (Time limit: M02) [1988/04]
11.02.1988Date of receipt of observations in an appeal [1988/07]
16.03.1988Result of appeal procedure: appeal withdrawn
Opposition(s)Opponent(s)01  23.10.1992  01.12.1992  ADMISSIBLE
Ivoclar AG
Bendererstr. 2
FL-9494 Schaan / LI
Opponents representative
Uexküll & Stolberg
Partnerschaft von
Patent- und Rechtsanwälten mbB
Beselerstrasse 4
22607 Hamburg / DE
 [N/P]
Former [1992/52]
Opponent(s)01  23.10.1992  01.12.1992  ADMISSIBLE
Ivoclar AG
Bendererstr. 2
FL-9494 Schaan / LI
Opponents representative
UEXKÜLL & STOLBERG
Patentanwälte Beselerstrasse 4
D-22607 Hamburg / DE
07.12.1992Invitation to proprietor to file observations on the notice of opposition
17.06.1993Reply of patent proprietor to notice(s) of opposition
23.07.1998Despatch of communication that the patent will be revoked
06.09.1998Legal effect of revocation of patent [1998/44]
Appeal following opposition28.02.1995Appeal received No.  T0190/95
06.06.1995Statement of grounds filed
23.07.1998Result of appeal procedure: revocation of the patent
23.07.1998Date of oral proceedings
29.07.1998Minutes of the oral proceedings despatched
10.11.1994Date of oral proceedings
30.01.1995Minutes of the oral proceedings despatched
Fees paidRenewal fee
13.07.1988Renewal fee patent year 03
18.07.1989Renewal fee patent year 04
19.07.1990Renewal fee patent year 05
30.07.1991Renewal fee patent year 06
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Lapses during opposition  Tooltipdeleted
[2015/21]
Former [2000/52]CH29.01.1992
LI29.01.1992
Documents cited:Search[YD]US3369297  (DAVID HALPERN BENJAMIN, et al);
 [Y]US4315970  (MCGEE JAMES B)
 [YD]  - E.P. PLUEDDEMANN: "Silane coupling agents", 1982, pages 49-73, chapter 3, "Aqueous solutions of silane coupling agents", Plenum Press, New York, US;
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.