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Extract from the Register of European Patents

EP About this file: EP0022586

EP0022586 - Method of crown grinding gears having longitudinally curved teeth and grinding head for performing this method [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.09.2016
Database last updated on 21.01.2025
Most recent event   Tooltip14.09.2016No opposition filed within time limit 
Applicant(s)For all designated states
Werkzeugmaschinenfabrik Oerlikon-Bührle AG
Birchstrasse 155
8050 Zürich / CH
[N/P]
Former [1981/03]For all designated states
Werkzeugmaschinenfabrik Oerlikon-Bührle AG
Birchstrasse 155
CH-8050 Zürich / CH
Inventor(s)01 / Konersmann, Erhard, Dipl.-Ing.
Grundackerstrasse 3
CH-8304 Wallisellen / CH
[1981/03]
Application number, filing date80200491.123.05.1980
[1981/03]
Priority number, dateCH1979000650312.07.1979         Original published format: CH 650379
[1981/03]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0022586
Date:21.01.1981
Language:DE
[1981/03]
Type: B1 Patent specification 
No.:EP0022586
Date:15.12.1982
Language:DE
[1982/50]
Search report(s)(Supplementary) European search report - dispatched on:EP06.11.1980
ClassificationIPC:B23F9/02
[1981/03]
CPC:
B23F19/002 (EP,US); B23F9/02 (EP,US)
Designated contracting statesCH,   DE,   FR,   GB,   IT,   LI [1981/03]
TitleGerman:Verfahren zum Balligschleifen von Zahnrädern mit längsgekrümmten Zähnen und Schleifkopf zur Durchführung des Verfahrens[1981/03]
English:Method of crown grinding gears having longitudinally curved teeth and grinding head for performing this method[1981/03]
French:Procédé pour rectifier le bombé des roues dentées à dents longitudinalement courbes et meule pour la mise en oeuvre du procédé[1981/03]
Examination procedure04.02.1981Examination requested  [1981/16]
04.01.1982Despatch of a communication from the examining division (Time limit: M02)
06.02.1982Reply to a communication from the examining division
10.05.1982Despatch of communication of intention to grant (Approval: )
11.06.1982Communication of intention to grant the patent
16.08.1982Fee for grant paid
16.08.1982Fee for publishing/printing paid
Opposition(s)15.09.1983No opposition filed within time limit [ N /P ]
Fees paidRenewal fee
05.05.1982Renewal fee patent year 03
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Documents cited:SearchUS3503301  [ ] (CANTRELL DAN R);
 DE1752775  [ ] (KLINGELNBERG SOEHNE FERD)
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.