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: EP0292132

EP0292132 - Telephone trunk line testing circuitry [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  26.05.1994
Database last updated on 05.10.2024
Most recent event   Tooltip26.05.1994No opposition filed within time limitpublished on 13.07.1994 [1994/28]
Applicant(s)For all designated states
MINNESOTA MINING AND MANUFACTURING COMPANY
3M Center, P.O. Box 33427
St. Paul, MN 55133-3427 / US
[N/P]
Former [1988/47]For all designated states
MINNESOTA MINING AND MANUFACTURING COMPANY
3M Center, P.O. Box 33427
St. Paul, Minnesota 55133-3427 / US
Inventor(s)01 / Burton, Peter G. c/o Minnesota Mining and
Manufacturing Company 2501 Hudson Road
St. Paul Minnesota 55144-1000 / US
02 / Kennedy, James K. c/o Minnesota Mining and
Manufacturing Company 2501 Hudson Road
St. Paul Minnesota 55144-1000 / US
[1988/47]
Representative(s)Baillie, Iain Cameron, et al
Ladas & Parry, Dachauerstrasse 37
80335 München / DE
[N/P]
Former [1988/47]Baillie, Iain Cameron, et al
c/o Ladas & Parry Altheimer Eck 2
D-80331 München / DE
Application number, filing date88303899.429.04.1988
[1988/47]
Priority number, dateUS1987005244620.05.1987         Original published format: US 52446
[1988/47]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0292132
Date:23.11.1988
Language:EN
[1988/47]
Type: A3 Search report 
No.:EP0292132
Date:02.05.1990
Language:EN
[1990/18]
Type: B1 Patent specification 
No.:EP0292132
Date:21.07.1993
Language:EN
[1993/29]
Search report(s)(Supplementary) European search report - dispatched on:EP12.03.1990
ClassificationIPC:H04M3/28
[1988/47]
CPC:
H04M3/28 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT [1988/47]
TitleGerman:Prüfschaltung für Fernsprechverbindungsleitungen[1988/47]
English:Telephone trunk line testing circuitry[1988/47]
French:Circuit de test pour ligne téléphonique de jonction[1988/47]
Examination procedure26.10.1990Examination requested  [1990/52]
11.09.1992Despatch of communication of intention to grant (Approval: Yes)
18.01.1993Communication of intention to grant the patent
04.02.1993Fee for grant paid
04.02.1993Fee for publishing/printing paid
Opposition(s)22.04.1994No opposition filed within time limit [1994/28]
Fees paidRenewal fee
29.03.1990Renewal fee patent year 03
02.01.1991Renewal fee patent year 04
23.03.1992Renewal fee patent year 05
23.03.1993Renewal fee patent year 06
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[A]FR2557412  (CIT ALCATEL [FR]);
 [A]WO8601664  (TII COMPUTER SYSTEMS INC [US]);
 [A]US4581493  (GAZZO JOHN [US], et al);
 [A]EP0211261  (SIEMENS AG [DE])
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.