Publication No.	Publication date	Filing No.	Priority	Status	Source Data
US 5206835A	1993-04-27	US 60662390A 19901031	FR 8914556A 19891103	Expired	National register (PAIR)
NO 904757D0	1990-11-01	NO 904757A	FR 8914556A 19891103	Unknown	Espacenet
NO 904757A	1991-05-06	NO 904757A 19901101	FR 8914556A 19891103	Unknown	Espacenet
JP 3170897A	1991-07-24	JP 29877590A 19901102	FR 8914556A 19891103	Unknown	Espacenet
FR 2654220A1	1991-05-10	FR 8914556A 19891103	FR 8914556A 19891103	Expired	Espacenet
FR 2654220B1	1992-02-21	FR 8914556A 19891103	FR 8914556A 19891103	Expired	Espacenet
EP 0426511A1	1991-05-08	EP 90402676A 19900927	FR 8914556A 19891103	Expired	Register (Epoline)
EP 0426511B1	1992-12-16	EP 90402676A 19900927	FR 8914556A 19891103	Expired	Register (Epoline)
DE 69000604D1	1993-01-28	DE 69000604A	FR 8914556A 19891103	Expired	National register
DE 69000604T2	1993-04-22	DE 69000604T 19900927	FR 8914556A 19891103	Expired	National register
CA 2029207A1	1991-05-04	CA 2029207A 19901102	FR 8914556A 19891103	Expired	Espacenet

US5206835 (Expired)
1990-10-31   ASSIGNMENT Owner Name INSTITUT FRANCAIS DU PETROLE, FRANCE
             ASSIGNMENT Free Format Text ASSIGNMENT OF ASSIGNORS
             INTEREST.;ASSIGNOR:BEAUDUCEL, CLAUDE;REEL/FRAME:005501/0681
1990-10-31   ASSIGNMENT Effective DATE 19901001
1997-07-08  -EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE Effective DATE
             19970430

NO904757 (Unknown)
No INPADOC legal data


JP3170897 (Unknown)
No INPADOC legal data


FR2654220 (Expired)
1997-09-26  -LAPSED


EP0426511 (Expired)
1991-05-08  +DESIGNATED CONTRACTING STATES: Kind Code of Ref Document A1
            +DESIGNATED CONTRACTING STATES: Designated State(s) DE GB IT NL
1991-05-08  +REQUEST FOR EXAMINATION FILED Effective DATE 19901008
1992-06-24  +FIRST EXAMINATION REPORT Effective DATE 19920511
1992-11-27  +IT: TRANSLATION FOR A EP PATENT FILED Owner Name DE DOMINICIS
             AND MAYER S.
1992-12-16  +DESIGNATED CONTRACTING STATES: Kind Code of Ref Document B1
            +DESIGNATED CONTRACTING STATES: Designated State(s) DE GB IT NL
1993-01-28   CORRESPONDS TO: Ref Document Number 69000604
             CORRESPONDS TO: Country of Ref Document DE
1993-01-28   CORRESPONDS TO: Date of Ref Document 19930128
             CORRESPONDS TO: Format of Ref Document F/P P
1993-02-10  +GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)
             Effective DATE 19930111
1993-12-08  +NO OPPOSITION FILED
1995-08-17  +POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE Ref Country
             Code GB
            +POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE Payment DATE
             19950817
1995-08-17  +POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE Year of Fee
             Payment 06
1995-09-29  +POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE Ref Country
             Code NL
            +POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE Payment DATE
             19950929
1995-09-29  +POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE Year of Fee
             Payment 06
1995-10-17  +POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE Ref Country
             Code DE
            +POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE Payment DATE
             19951017
1995-10-17  +POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE Year of Fee
             Payment 06
1996-09-27  -LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM.
             FROM NAT. OFFICE TO EPO Ref Country Code GB
            -LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM.
             FROM NAT. OFFICE TO EPO Effective DATE 19960927
1997-04-01  -LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM.
             FROM NAT. OFFICE TO EPO Ref Country Code NL
            -LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM.
             FROM NAT. OFFICE TO EPO Effective DATE 19970401
1997-05-14  -GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE
             Effective DATE 19960927
1997-06-02  -NL: LAPSED OR ANULLED DUE TO NON-PAYMENT OF THE ANNUAL FEE
             Effective DATE 19970401
1997-06-03  -LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM.
             FROM NAT. OFFICE TO EPO Ref Country Code DE
            -LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM.
             FROM NAT. OFFICE TO EPO Effective DATE 19970603
2005-09-27  -LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM.
             FROM NAT. OFFICE TO EPO Ref Country Code IT
            -LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM.
             FROM NAT. OFFICE TO EPO Free Format Text LAPSE BECAUSE OF
             NON-PAYMENT OF DUE FEES
2005-09-27  -LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM.
             FROM NAT. OFFICE TO EPO Effective DATE 20050927


DE69000604 (Expired)
1994-01-20  +NO OPPOSITION DURING TERM OF OPPOSITION
1997-09-11  -CEASED/NON-PAYMENT OF THE ANNUAL FEE


CA2029207 (Expired)
1997-11-03  -DEAD