Patent Assignment Details
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Reel/Frame: | 004925/0085 | |
| Pages: | 1 |
| | Recorded: | 06/23/1988 | | |
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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03/13/1990
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Application #:
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07210463
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Filing Dt:
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06/23/1988
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Title:
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METHOD OF PRODUCING CRYSTALS OF ANHYDROUS SODIUM SULFIDE
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Assignee
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WATANABEBASHI BLDG. 7F, 4-16, 1-CHOME, DOJIMA-HAMA, KITAKU |
OSAKA, JAPAN 530 |
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Correspondence name and address
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ARMSTRONG, NIKAIDO, MARMELSTEIN
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& KUBOVCIK, STE. 912
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1725 K ST., N. W.
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WASHINGTON, DC 20006
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