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: EP0453102

EP0453102 - Magnetic resonance imaging methods and apparatus [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  11.12.1999
Database last updated on 29.03.2025
Most recent event   Tooltip05.10.2005Change: Appeal number 
Applicant(s)For all designated states
PICKER INTERNATIONAL, INC.
595 Miner Road Highland Heights
Ohio 44143 / US
[N/P]
Former [1991/43]For all designated states
PICKER INTERNATIONAL, INC.
595 Miner Road
Highland Heights Ohio 44143 / US
Inventor(s)01 / DeMeester, Gordon D.
1613 Dennis Drive
Wickliffe, Ohio 44092 / US
02 / Denison, Kenneth S.
14617 Drexmore Road
Shaker Heights, Ohio 44120 / US
03 / Bearden, Francis H.
9975 Serene Court
Twinsburg, Ohio 44067 / US
[1991/43]
Representative(s)Waters, Jeffrey, et al
Marconi Intellectual Property
Crompton Close
Basildon
Essex SS14 3BA / GB
[N/P]
Former [1999/30]Waters, Jeffrey, et al
The General Electric Company, p.l.c. GEC Patent Department Waterhouse Lane
Chelmsford, Essex CM1 2QX / GB
Former [1996/18]McGowan, Nigel George, et al
The General Electric Company plc GEC Patent Department Waterhouse Lane
Chelmsford, Essex CM1 2QX / GB
Former [1991/43]Pope, Michael Bertram Wingate
The General Electric Company, p.l.c. GEC Patent Department Waterhouse Lane
Chelmsford, Essex CM1 2QX / GB
Application number, filing date91302528.422.03.1991
[1991/43]
Priority number, dateUS1990051098119.04.1990         Original published format: US 510981
[1991/43]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0453102
Date:23.10.1991
Language:EN
[1991/43]
Type: A3 Search report 
No.:EP0453102
Date:26.08.1992
Language:EN
[1992/35]
Search report(s)(Supplementary) European search report - dispatched on:EP03.07.1992
ClassificationIPC:G01R33/54, G01R33/56
[1992/35]
CPC:
G01R33/56 (EP,US)
Former IPC [1991/43]G01R33/54
Designated contracting statesDE,   FR,   NL [1991/43]
TitleGerman:Apparat und Verfahren zur magnetischen Resonanzabbildung[1991/43]
English:Magnetic resonance imaging methods and apparatus[1991/43]
French:Appareil et méthode pour imagerie par résonance magnétique[1991/43]
Examination procedure05.02.1993Examination requested  [1993/16]
29.04.1993Despatch of a communication from the examining division (Time limit: M06)
12.10.1993Reply to a communication from the examining division
18.11.1993Despatch of a communication from the examining division (Time limit: M04)
18.03.1994Reply to a communication from the examining division
19.12.1994Despatch of communication that the application is refused, reason: substantive examination [2000/04]
29.12.1994Application refused, date of legal effect [2000/04]
Appeal following examination17.02.1995Appeal received No.  T0402/95
18.04.1995Statement of grounds filed
06.10.1999Result of appeal procedure: appeal of the applicant was rejected
15.10.1999Invitation to file observations in an appeal (Time limit: M02) [1999/42]
06.10.1999Date of oral proceedings
Fees paidRenewal fee
24.02.1993Renewal fee patent year 03
28.02.1994Renewal fee patent year 04
13.03.1995Renewal fee patent year 05
20.03.1996Renewal fee patent year 06
19.03.1997Renewal fee patent year 07
13.03.1998Renewal fee patent year 08
22.03.1999Renewal fee patent year 09
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[X]JP1293866  ;
 [X]DE3926337  (HITACHI LTD [JP]);
 [YD]US4748411  (HOLLAND G NEIL [US]);
 [Y]EP0217196  (UNIV CALIFORNIA [US]);
 [A]US4841247  (ITAGAKI HIDENOBU [JP])
 [X]  - PATENT ABSTRACTS OF JAPAN vol. 14, no. 077 (C-0688)14 February 1990 & JP-A-1 293 866 ( TOSHIBA CORP ) 27 November 1989, & JP1293866 A 19891127
 [A]  - BELL SYSTEM TECHNICAL JOURNAL, vol. 48, no. 5, May 1969, NEW YORK USA pages 1249 - 1292; L.R. RABINER ET AL.: 'The Chirp z-Transform Algorithm and Its Application'
 [AP]  - IEEE TRANSACTIONS ON MEDICAL IMAGING. vol. 9, no. 2, June 1990, NEW YORK, USA pages 190 - 201; T.N. MA, K. TAKAYA: 'High-Resolution NMR Chemical-Shift Imaging with Reconstruction by the Chirp z-Transform'
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.