Patent Assignment Details
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Reel/Frame: | 005069/0252 | |
| Pages: | 1 |
| | Recorded: | 05/03/1989 | | |
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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01/23/1990
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Application #:
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07283112
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Filing Dt:
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12/12/1988
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Title:
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PURIFICATION OF ALKANESULFONIC ACIDS USING OZONE
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Assignee
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3 PARKWAY |
PHILADELPHIA, PENNSYLVANIA |
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Correspondence name and address
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ROYAL E. BRIGHT
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PENNWALT CORPORATION
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PATENT DEPARTMENT
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THREE PARKWAY
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PHILADELPHIA, PA 19102
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