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Extract from the Register of European Patents

EP About this file: EP0191432

EP0191432 - Method and apparatus for effecting light energy transmission with lessened reflection [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.01.1992
Database last updated on 18.09.2024
Most recent event   Tooltip07.03.1997Lapse of the patent in a contracting statepublished on 23.04.1997 [1997/17]
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 [1991/35]For all designated states
MINNESOTA MINING AND MANUFACTURING COMPANY
3M Center, P.O. Box 33427
St. Paul, Minnesota 55133-3427 / US
Former [1986/34]For all designated states
DORRAN PHOTONICS INCORPORATED
81 First Avenue
Atlantic Highlands New Jersey 07716 / US
Inventor(s)01 / Cook, John S.
1 Markwood Lane
Rumson New Jersey 07760 / US
[1986/34]
Representative(s)Abitz, Walter, et al
Patentanwälte Abitz & Partner Postfach 86 01 09
81628 München / DE
[N/P]
Former [1991/37]Abitz, Walter, Dr.-Ing., et al
Patentanwälte Abitz & Partner Postfach 86 01 09
D-81628 München / DE
Former [1991/35]Abitz, Walter, Dr.-Ing.
Patentanwälte Abitz & Partner Postfach 86 01 09
D-81628 München / DE
Former [1986/34]Abitz, Walter, Dr.-Ing.
Patentanwälte Abitz & Partner Postfach 86 01 09
D-81628 München / DE
Application number, filing date86101603.807.02.1986
[1986/34]
Priority number, dateUS1985070045811.02.1985         Original published format: US 700458
[1986/34]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0191432
Date:20.08.1986
Language:EN
[1986/34]
Type: A3 Search report 
No.:EP0191432
Date:04.11.1987
Language:EN
[1987/45]
Type: B1 Patent specification 
No.:EP0191432
Date:20.03.1991
Language:EN
[1991/12]
Search report(s)(Supplementary) European search report - dispatched on:EP17.09.1987
ClassificationIPC:G02B6/26
[1986/34]
CPC:
G02B6/3822 (EP,US); G02B6/24 (KR); G02B6/262 (EP,US);
G02B6/264 (EP,US); G02B6/3855 (EP,US); G02B6/4207 (EP,US);
G02B6/3874 (EP,US) (-)
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LI,   SE [1986/34]
TitleGerman:Verfahren und Vorrichtung zur Ausführung von Lichtenergie-Übertragung mit verminderter Reflexion[1986/34]
English:Method and apparatus for effecting light energy transmission with lessened reflection[1986/34]
French:Procédé et dispositif pour effectuer la transmission de l'énergie lumineuse avec une réflexion diminuée[1986/34]
Examination procedure03.05.1988Examination requested  [1988/27]
09.08.1988Despatch of a communication from the examining division (Time limit: M08)
20.03.1989Reply to a communication from the examining division
23.08.1989Despatch of a communication from the examining division (Time limit: M06)
02.03.1990Reply to a communication from the examining division
12.04.1990Despatch of communication of intention to grant (Approval: Yes)
27.08.1990Communication of intention to grant the patent
30.11.1990Fee for grant paid
30.11.1990Fee for publishing/printing paid
Opposition(s)21.12.1991No opposition filed within time limit [1992/11]
Fees paidRenewal fee
13.01.1988Renewal fee patent year 03
04.01.1989Renewal fee patent year 04
15.01.1990Renewal fee patent year 05
02.01.1991Renewal fee patent year 06
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Documents cited:Search[X]JP52009449  ;
 [A]JP59134885  ;
 [A]JP59057209  ;
 [A]JP59044013  ;
 [X]EP0088410  (NEC CORP [JP]);
 [A]AU521528B  (AUSTRALIAN TELECOMM)
 [X]  - PATENT ABSTRACTS OF JAPAN, vol. 1, no 72 (E-77), 13th July 1977, page 779 E 77; & JP-A-52 009 449 (FUJITSU K.K.) 25-01-1977, & JP52009449 A 00000000
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 8, no. 264 (E-282)[1701], 4th December 1984; & JP-A-59 134 885 (MATSUSHITA DENKI SANGYO K.K.) 02-08-1984, & JP59134885 A 00000000
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 8, no. 159 (P-289)[1596], 24th July 1984; & JP-A-59 057 209 (FUJITSU K.K.) 02-04-1984, & JP59057209 A 00000000
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 8, no. 144 (P-284)[1581], 5th July 1984; & JP-A-59 044 013 (NIHON MUSEN K.K.) 12-03-1984, & JP59044013 A 00000000
ExaminationJPS529449
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.