Patent Assignment Abstract of Title
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For pending or abandoned applications please consult USPTO staff.
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Total Assignments:
2
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Patent #:
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Issue Dt:
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03/31/1992
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Application #:
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07553345
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Filing Dt:
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07/16/1990
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Inventors:
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PIERRE BOUCHUT, YVES KENSICHER, JACKY ROUSSET
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Title:
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NON-POLLUTING DISPERSING AGENT FOR DRILLING FLUIDS BASED ON FRESHWATER OR SALT WATER
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| 35, COURS ARISTIDE BRIAND |
| 69300 CALUIRE, FRANCE |
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| NORMAN F. OBLON |
| OBLON, SPIVAK, MCCLELLAND, |
| MAIER & NEUSTADT |
| 1755 JEFFERSON DAVIS HIGHWAY, 4TH FLOOR |
| ARLINGTON, VA 22202 |
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Assignment:
2
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DOCUMENT PREVIOUSLY RECORDED AT REEL 012177 FRAME 0519 CONTAINED AN ERROR IN PROPERTY NUMBER 5009928. DOCUMENT RE-RECOREDED TO CORRECT EROR ON STATED REEL.
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| 35, RUE AMPERE |
| 69730 GENAY, FRANCE |
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| OBLON SPIVAK MCCLELLAND MAIER & NEUSTADT |
| FOURTH FLOOR |
| 1755 JEFFERSON DAVIS HIGHWAY |
| ARLINGTON, VA 22202 |
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