Patent Assignment Details
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Reel/Frame: | 004662/0636 | |
| Pages: | 1 |
| | Recorded: | 01/15/1987 | | |
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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01/12/1988
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Application #:
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07003679
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Filing Dt:
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01/15/1987
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Title:
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LOCKDOWN RING ASSEMBLY FOR WELLHEAD SEAL
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Assignee
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301 GRANT STREET |
PITTSBURGH, PENNSYLVANIA 15219 |
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Correspondence name and address
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MARVIN J. MARNOCK
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W-K-M DIVISION, JOY MANUFACTURING CO.,
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P. O. BOX 2117
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HOUSTON, TX 77252-2117
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