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Extract from the Register of European Patents

EP About this file: EP0393410

EP0393410 - Aircraft with a pair of contra-rotating propellers [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  30.03.1995
Database last updated on 13.07.2024
Most recent event   Tooltip11.12.1999Lapse of the patent in a contracting state
New state(s): GR
published on 26.01.2000 [2000/04]
Applicant(s)For all designated states
Sky Disc Holding SA
c/o Norasia Shipping Services SA, Beauregard 10
CH-1700 Fribourg / CH
[N/P]
Former [1991/33]For all designated states
Sky Disc Holding SA
c/o Norasia Shipping Services SA, Beauregard 10
CH-1700 Fribourg / CH
Former [1990/43]For all designated states
Bucher, Franz
Rebgasse 17
CH-4058 Basel / CH
Inventor(s)01 / Bucher, Franz
Rebgasse 17
CH-4058 Basel / CH
[1994/21]
Former [1990/43]01 / see applicant
...
Representative(s)Blum, Rudolf Emil, et al
E. BLUM & Co. AG Patent- und Markenanwälte VSP Vorderberg 11
8044 Zürich / CH
[N/P]
Former [1990/43]Blum, Rudolf Emil Ernst, et al
c/o E. Blum & Co Patentanwälte Vorderberg 11
CH-8044 Zürich / CH
Application number, filing date90106212.531.03.1990
[1990/43]
Priority number, dateCH1989000149219.04.1989         Original published format: CH 149289
[1990/43]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0393410
Date:24.10.1990
Language:DE
[1990/43]
Type: A3 Search report 
No.:EP0393410
Date:03.07.1991
Language:DE
[1991/27]
Type: B1 Patent specification 
No.:EP0393410
Date:25.05.1994
Language:DE
[1994/21]
Search report(s)(Supplementary) European search report - dispatched on:EP13.05.1991
ClassificationIPC:B64C27/20, B64C27/10
[1991/32]
CPC:
B64C39/001 (EP,US); B64C27/20 (EP,US); B64C29/0025 (EP,US)
Former IPC [1990/43]B64C27/10
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1990/43]
TitleGerman:Fluggerät mit einem gegensinnig drehenden Rotorpaar[1990/43]
English:Aircraft with a pair of contra-rotating propellers[1990/43]
French:Appareil aérospatial avec deux hélices tournant en sens inverse[1990/43]
Examination procedure02.01.1992Examination requested  [1992/10]
19.02.1993Despatch of a communication from the examining division (Time limit: M04)
02.04.1993Reply to a communication from the examining division
17.05.1993Despatch of communication of intention to grant (Approval: Yes)
23.08.1993Communication of intention to grant the patent
28.10.1993Fee for grant paid
28.10.1993Fee for publishing/printing paid
Opposition(s)28.02.1995No opposition filed within time limit [1995/20]
Fees paidRenewal fee
11.03.1992Renewal fee patent year 03
11.03.1993Renewal fee patent year 04
10.03.1994Renewal 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  TooltipBE25.05.1994
DK25.05.1994
GR25.05.1994
[2000/04]
Former [1998/15]BE25.05.1994
DK25.05.1994
Former [1995/11]BE25.05.1994
Documents cited:Search[AD]US2461435  (NEUMANN CHARLES A, et al);
 [AD]US2777649  (WILLIAMS SAMUEL B);
 [A]AT304273B  (PICHLER HUBERT);
 [AD]AU474805B  ;
 [A]AT357045B  (STEINKELLNER RUDOLF);
 [P]CH672465  (BUCHER FRANZ)
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.