Patent Assignment Details
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| Reel/Frame: | 005034/0185 | |
| Pages: | 3 |
| | Recorded: | 01/24/1989 | | |
| 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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07/10/1990
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Application #:
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07252933
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Filing Dt:
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10/04/1988
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Title:
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METHOD OF PREPARING CELLULOSE ETHERS CONTAINING TERTIARY OR QUATERNARY NITROGEN
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Assignee
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| WEISSFRAUENSTRASSE 9 |
| 6000 FRANKFURT/MAIN, GERMANY |
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Correspondence name and address
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BEVERIDGE, DEGRANDI & WEILACHER
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SUITE 1100
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1819 H ST. N.W.
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WASHINGTON, DC 20006
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