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Extract from the Register of European Patents

EP About this file: EP0371577

EP0371577 - Easily upgradable video memory system and method [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.03.1995
Database last updated on 11.09.2024
Most recent event   Tooltip26.04.2002Lapse of the patent in a contracting state
New state(s): ES
published on 12.06.2002  [2002/24]
Applicant(s)For all designated states
DIGITAL EQUIPMENT CORPORATION
111 Powdermill Road Maynard
Massachusetts 01754-1418 / US
[N/P]
Former [1990/23]For all designated states
DIGITAL EQUIPMENT CORPORATION
111 Powdermill Road
Maynard Massachusetts 01754-1418 / US
Inventor(s)01 / Furlong, Thomas C.
2300 Winged Foot Road
Half Moon Bay California 84019 / US
[1990/23]
Representative(s)Goodman, Christopher, et al
Eric Potter Clarkson, Park View House, 58 The Ropewalk
Nottingham NG1 5DD / GB
[N/P]
Former [1990/23]Goodman, Christopher, et al
Eric Potter & Clarkson St. Mary's Court St. Mary's Gate
Nottingham NG1 1LE / GB
Application number, filing date89306572.228.06.1989
[1990/23]
Priority number, dateUS1988027705928.11.1988         Original published format: US 277059
[1990/23]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0371577
Date:06.06.1990
Language:EN
[1990/23]
Type: A3 Search report 
No.:EP0371577
Date:27.03.1991
Language:EN
[1991/13]
Type: B1 Patent specification 
No.:EP0371577
Date:18.05.1994
Language:EN
[1994/20]
Search report(s)(Supplementary) European search report - dispatched on:EP06.02.1991
ClassificationIPC:G09G1/02
[1990/23]
CPC:
G09G5/02 (EP,US); G09G5/395 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1990/23]
TitleGerman:Leicht erweiterbares Video-Speichersystem und Methode dafür[1990/23]
English:Easily upgradable video memory system and method[1990/23]
French:Système de mémoire vidéo facilement extensible et méthode pour cela[1990/23]
Examination procedure14.07.1989Examination requested  [1990/23]
25.02.1993Despatch of a communication from the examining division (Time limit: M04)
14.04.1993Reply to a communication from the examining division
05.08.1993Despatch of communication of intention to grant (Approval: Yes)
12.11.1993Communication of intention to grant the patent
07.01.1994Fee for grant paid
07.01.1994Fee for publishing/printing paid
Opposition(s)21.02.1995No opposition filed within time limit [1995/19]
Fees paidRenewal fee
17.06.1991Renewal fee patent year 03
18.05.1992Renewal fee patent year 04
27.05.1993Renewal fee patent year 05
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT18.05.1994
BE18.05.1994
CH18.05.1994
ES18.05.1994
GR18.05.1994
LI18.05.1994
NL18.05.1994
SE18.05.1994
LU30.06.1994
[2002/24]
Former [2002/23]AT18.05.1994
BE18.05.1994
CH18.05.1994
GR18.05.1994
LI18.05.1994
NL18.05.1994
SE18.05.1994
LU30.06.1994
Former [2000/04]AT18.05.1994
BE18.05.1994
CH18.05.1994
GR18.05.1994
LI18.05.1994
NL18.05.1994
LU30.06.1994
Former [1995/12]AT18.05.1994
BE18.05.1994
CH18.05.1994
LI18.05.1994
NL18.05.1994
Former [1995/11]AT18.05.1994
BE18.05.1994
CH18.05.1994
LI18.05.1994
Former [1995/02]AT18.05.1994
CH18.05.1994
LI18.05.1994
Former [1994/48]CH18.05.1994
LI18.05.1994
Documents cited:Search[X]GB2073995  (AMPEX);
 [A]GB2146811  (MOTOROLA INC);
 [A]EP0238188  (INMOS LTD [GB])
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.