Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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11/21/2000
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Application #:
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09173993
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Filing Dt:
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10/16/1998
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Inventor:
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DAVID E. MCCALVIN
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Title:
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EQUALIZING SUBSURFACE SAFETY VALVE WITH INJECTION SYSTEM
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 4636 SOMERTON ROAD |
| TREVOSE, PENNSYLVANIA 19053 |
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| BETZDEARBORN INC. |
| DEBORAH R. SEGELITZ |
| LEGAL DEPARTMENT |
| 4636 SOMERTON ROAD |
| TREVOSE, PA 19053-6783 |
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