Patent Assignment Details
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| Reel/Frame: | 004177/0672 | |
| Pages: | 1 |
| | Recorded: | 10/13/1983 | | |
| 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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12/20/1983
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Application #:
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06428215
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Filing Dt:
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09/29/1982
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Title:
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HALF-KEYSTONE COMPRESSION RING
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Assignee
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| KOPPERS BUILDING |
| A CORP OF DE |
| PITTSBURG, PENNSYLVANIA 15219 |
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Correspondence name and address
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THOMAS L. SIVAK
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KOPPERS COMPANY, INC.
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1450 KOPPERS BLDG.
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PITTSBURGH, PA. 15219
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