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Extract from the Register of European Patents

EP About this file: EP0020074

EP0020074 - Method of welding metal pipe sections with explosives [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.09.2016
Database last updated on 16.11.2024
Most recent event   Tooltip14.09.2016No opposition filed within time limit 
Applicant(s)For all designated states
C.I.L. Inc.
P.O. Box 10 Montreal
Quebec H3C 2R3 / CA
[N/P]
Former [1980/25]For all designated states
C.I.L. Inc.
P.O. Box 10
Montreal Quebec H3C 2R3 / CA
Inventor(s)01 / Linse, Vonne Duane
3860 Bramford Road
Colombus Ohio / US
02 / Pattee, Harry Edward
2660 Moncalm Road
Columbus Ohio / US
[1980/25]
Representative(s)McCall, John Douglas, et al
WP Thompson
Coopers Building
Church Street
Liverpool L1 3AB / GB
[N/P]
Former [2009/49]McCall, John Douglas, et al
W.P. Thompson & Co. Coopers Building Church Street
Liverpool L1 3AB / GB
Former [1980/25]McCall, John Douglas, et al
W.P. THOMPSON & CO. Coopers Building Church Street
Liverpool L1 3AB / GB
Application number, filing date80301642.720.05.1980
[1980/25]
Priority number, dateUS1979004051421.05.1979         Original published format: US 40514
[1980/25]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0020074
Date:10.12.1980
Language:EN
[1980/25]
Type: B1 Patent specification 
No.:EP0020074
Date:24.11.1982
Language:EN
[1982/47]
Search report(s)(Supplementary) European search report - dispatched on:EP25.09.1980
ClassificationIPC:B23K20/08
[1980/25]
CPC:
B23K20/085 (EP,US); B23K20/08 (KR)
Designated contracting statesAT,   DE,   FR,   GB,   NL,   SE [1980/25]
TitleGerman:Verfahren zum Schweissen von Metallrohrteilen mit Sprengladungen[1980/25]
English:Method of welding metal pipe sections with explosives[1980/25]
French:Procédé de soudage de sections de tube métallique à l'aide d'explosifs[1980/25]
File destroyed:12.06.1999
Examination procedure21.10.1980Examination requested  [1981/01]
16.04.1981Despatch of a communication from the examining division (Time limit: M02)
05.06.1981Reply to a communication from the examining division
01.03.1982Despatch of communication of intention to grant (Approval: )
26.05.1982Communication of intention to grant the patent
06.08.1982Fee for grant paid
06.08.1982Fee for publishing/printing paid
Opposition(s)25.08.1983No opposition filed within time limit [ N /P ]
Fees paidRenewal fee
14.05.1982Renewal fee patent year 03
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Documents cited:SearchLU47364  [ ];
 DE1248434  [ ] (WMF WUERTTEMBERG METALLWAREN);
 DE2317366  [ ] (BAYERN CHEMIE GMBH FLUGCHEMIE);
 US4046301  [ ] (WITTMAN ROBERT H, et al)
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.