Patent Assignment Details
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Reel/Frame: | 006036/0839 | |
| Pages: | 2 |
| | Recorded: | 03/11/1992 | | |
Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Total properties:
1
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Patent #:
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Issue Dt:
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06/09/1992
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Application #:
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07464552
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Filing Dt:
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11/27/1989
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Title:
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TREATMENT OF AQUEOUS DRILLING MUD EFFLUENTS CONTAINING LIGNO- SULFONATES
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Assignee
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TOUR ELF-2 PLACE DE LA COUPOLE |
LA DEFENSE 6-92400 COURBEVOIE, FRANCE |
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Correspondence name and address
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OBLON, SPIVAK, MCCLELLAND,
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MAIER & NEUSTADT
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1755 JEFF. DAVIS HWY - 4TH FLR.
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ARLINGTON, VA 22202
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