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Extract from the Register of European Patents

EP About this file: EP0272579

EP0272579 - Refractory shields for curved and straight superheater tubes [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  27.11.1993
Database last updated on 02.07.2024
Most recent event   Tooltip27.11.1993No opposition filed within time limitpublished on 19.01.1994 [1994/03]
Applicant(s)For all designated states
NORTON COMPANY
1 New Bond Street Worcester
Massachusetts 01606 / US
[N/P]
Former [1988/26]For all designated states
NORTON COMPANY
1 New Bond Street
Worcester Massachusetts 01606 / US
Inventor(s)01 / Woodruff, Roger W.
28 Laurel Hill Lane
Holden Massachusetts / US
[1988/26]
Representative(s)Zumstein jun., Fritz
Dr. F. Zumstein
Dipl.-Ing. F. Klingseisen
Bräuhausstrasse 4
80331 München / DE
[N/P]
Former [1991/12]Zumstein, Fritz, Dr.
Dr. F. Zumstein Dipl.-Ing. F. Klingseisen Bräuhausstrasse 4
D-80331 München / DE
Former [1988/26]Madgwick, Paul Roland
Ladas & Parry Altheimer Eck 2
D-80331 München / DE
Application number, filing date87118516.114.12.1987
[1988/26]
Priority number, dateUS1986094491322.12.1986         Original published format: US 944913
[1988/26]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0272579
Date:29.06.1988
Language:EN
[1988/26]
Type: A3 Search report 
No.:EP0272579
Date:21.03.1990
Language:EN
[1990/12]
Type: B1 Patent specification 
No.:EP0272579
Date:27.01.1993
Language:EN
[1993/04]
Search report(s)(Supplementary) European search report - dispatched on:EP31.01.1990
ClassificationIPC:F22G3/00
[1988/26]
CPC:
F16L3/1226 (EP); F22G3/00 (KR); F22B37/10 (KR);
F22B37/107 (EP); F27D1/12 (KR)
Designated contracting statesDE,   FR,   GB [1988/26]
TitleGerman:Feuerfeste Abschirmung für gerade und krumme Überhitzerrohre[1988/26]
English:Refractory shields for curved and straight superheater tubes[1988/26]
French:Protection réfractaire pour tubes de surchauffeurs courbés et rectilignes[1988/26]
Examination procedure30.08.1990Examination requested  [1990/43]
03.12.1990Despatch of a communication from the examining division (Time limit: M06)
12.06.1991Reply to a communication from the examining division
03.09.1991Despatch of a communication from the examining division (Time limit: M06)
17.01.1992Reply to a communication from the examining division
23.03.1992Despatch of communication of intention to grant (Approval: Yes)
30.07.1992Communication of intention to grant the patent
29.09.1992Fee for grant paid
29.09.1992Fee for publishing/printing paid
Opposition(s)28.10.1993No opposition filed within time limit [1994/03]
Fees paidRenewal fee
20.11.1989Renewal fee patent year 03
20.11.1990Renewal fee patent year 04
18.11.1991Renewal fee patent year 05
24.11.1992Renewal fee patent year 06
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Documents cited:Search[A]US4337034  (MORGAN II JOHN W, et al);
 [A]US4304267  (CAMPBELL JR FRANK)
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.