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

Release notes
European Patent Register Assistant
European Patent Register Resource Book
European Patent Register – pocket guide
FAQ - European Patent Register
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP0553768

EP0553768 - Process for reducing the back migration in mechanical vacuum pumps operating with perfluoro-polyether oils [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.03.2001
Database last updated on 29.03.2025
Most recent event   Tooltip05.10.2005Change: Appeal number 
Applicant(s)For all designated states
AUSIMONT S.p.A.
Foro Buonaparte, 31
I-20121 Milano / IT
[1993/31]
Inventor(s)01 / Silvani, Rossella
23 via Scultori del Legno
I-20030 Lentate Sul Seveso (Milano) / IT
02 / Carsetti, Valerio
2/7 via Don Minzoni
I-20020 Arese (Milano) / IT
03 / Pace, Casimiro
4 via Rossetti
I-15100 Alessanfria / IT
04 / Srinivasan, Padmanabhan
19 via della Sila
I-20131 Milano / IT
[1993/31]
Representative(s)Simeoni, Lucio, et al
Sama Patents
Via G.B. Morgagni, 2
20129 Milano / IT
[N/P]
Former [2000/18]Simeoni, Lucio, Dr., et al
Sama Patents, Via Morgagni, 2
20129 Milano / IT
Former [1993/31]Simeoni, Lucio, Dr.
Sama Patents, Via Masera, 10 (P.zza Lima)
I-20129 Milano / IT
Application number, filing date93101140.726.01.1993
[1993/31]
Priority number, dateIT1992MI0017030.01.1992         Original published format: IT MI920170
[1993/31]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0553768
Date:04.08.1993
Language:EN
[1993/31]
Type: A3 Search report 
No.:EP0553768
Date:25.08.1993
Language:EN
[1993/34]
Type: B1 Patent specification 
No.:EP0553768
Date:03.05.2000
Language:EN
[2000/18]
Search report(s)(Supplementary) European search report - dispatched on:EP06.07.1993
ClassificationIPC:C10M107/38, F04C29/02, C08G65/30, // C10N20:04, C10N40:00
[1993/33]
CPC:
C10M107/38 (EP,US); F04F9/00 (KR); C10M2213/00 (EP,US);
C10M2213/04 (EP,US); C10M2213/06 (EP,US); C10N2040/00 (EP,US);
C10N2040/30 (EP,US); C10N2040/32 (EP,US); C10N2040/34 (EP,US);
C10N2040/36 (EP,US); C10N2040/38 (EP,US); C10N2040/40 (EP,US);
C10N2040/42 (EP,US); C10N2040/44 (EP,US); C10N2040/50 (EP,US) (-)
Former IPC [1993/31]C10M107/38, // (C10N20/04, 40:00)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IE,   IT,   LI,   LU,   NL,   PT,   SE [1993/31]
TitleGerman:Verfahren zur Verminderung der Rückströmung flüchtiger Fraktionen in mit Perfluoropolyetherölen arbeitenden, mechanischen Vakuumpumpen[1993/31]
English:Process for reducing the back migration in mechanical vacuum pumps operating with perfluoro-polyether oils[1993/31]
French:Procédé pour reduire le retour des fractions volatiles dans des pompes à vide mécaniques opérant avec des huiles à base de perfluoropolyether[1993/31]
Examination procedure15.03.1994Examination requested  [1998/47]
15.03.1994Request for decision received: division
01.10.1998Result of request for decision (division): Request rejected
03.12.1998Request for accelerated examination filed
05.02.1999Decision about request for accelerated examination - accepted: Yes
19.03.1999Despatch of a communication from the examining division (Time limit: M04)
27.04.1999Reply to a communication from the examining division
11.05.1999Despatch of a communication from the examining division (Time limit: M04)
08.06.1999Reply to a communication from the examining division
19.07.1999Despatch of communication of intention to grant (Approval: Yes)
03.11.1999Communication of intention to grant the patent
18.01.2000Fee for grant paid
18.01.2000Fee for publishing/printing paid
Appeal following examination01.12.1998Appeal received No.  J0006/99
03.12.1998Statement of grounds filed
25.10.1999Result of appeal procedure: allowance of appeal
Opposition(s)06.02.2001No opposition filed within time limit [2001/17]
Fees paidRenewal fee
10.01.1995Renewal fee patent year 03
10.01.1996Renewal fee patent year 04
22.01.1997Renewal fee patent year 05
28.01.1998Renewal fee patent year 06
26.01.1999Renewal fee patent year 07
26.01.2000Renewal fee patent year 08
Penalty fee
Penalty fee Rule 85b EPC 1973
22.03.1994M01   Fee paid on   15.03.1994
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.
Lapses during opposition  TooltipAT03.05.2000
BE03.05.2000
CH03.05.2000
GR03.05.2000
LI03.05.2000
DK03.08.2000
PT03.08.2000
SE03.08.2000
IE26.01.2001
LU26.01.2001
[2004/39]
Former [2004/07]AT03.05.2000
BE03.05.2000
CH03.05.2000
GR03.05.2000
LI03.05.2000
DK03.08.2000
PT03.08.2000
SE03.08.2000
IE26.01.2001
Former [2003/45]AT03.05.2000
BE03.05.2000
CH03.05.2000
LI03.05.2000
DK03.08.2000
PT03.08.2000
SE03.08.2000
IE26.01.2001
Former [2002/14]AT03.05.2000
BE03.05.2000
CH03.05.2000
LI03.05.2000
PT03.08.2000
SE03.08.2000
IE26.01.2001
Former [2002/02]AT03.05.2000
BE03.05.2000
CH03.05.2000
LI03.05.2000
PT03.08.2000
SE03.08.2000
Former [2001/27]AT03.05.2000
BE03.05.2000
PT03.08.2000
SE03.08.2000
Former [2001/16]AT03.05.2000
BE03.05.2000
PT03.08.2000
Former [2001/11]AT03.05.2000
BE03.05.2000
Documents cited:Search[X]US4178465  (BELARDINELLI GIORGIO [IT], et al);
 [AD]EP0223251  (AUSIMONT SPA [IT])
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.