US3264014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic-lined conduit
Assignee: Phillips Petroleum Co
•
Filing: 1964-01-09
•
Granted: 1966-08-02
•
Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Harry M Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:54
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006; F16L15/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A THERMOPLASTIC LINED STEEL TUBING ASSEMBLY POSITIONED IN A WELL BORE COMPRISING A PLURALITY OF THREADED STEEL TUBING SECTIONS CONNECTED TOGETHER BY THREADED STEEL COUPLINGS AND TERMINATING AT THE BOTTOM WITH A THREADED STEEL TERMINAL COUPLING; A PLURALITY OF THERMOPLASTIC TUBING SECTIONS POSITIONED IN SAID STEEL TUBING AND WELDED TOGETHER AND TERMINATING AT THE BOTTOM WITH A THERMOPLASTIC REDUCING NIPPLE THREADED INTO THE OPEN END OF THE THREADED STEEL TERMINAL COUPLING WITH THE SMALLER END OF SAID NIPPLE EXTENDING THROUGH SAID COUPLING AND WELDED TO SAID PLURALITY OF THERMOPLASTIC SECTIONS; A STEEL COMBINATION COUPLING ATTACHED TO THE UPPER END OF SAID PLURALITY OF STEEL TUBING SECTIONS, SAID COMBINATION COUPLING HAVING IN ONE END THEREOF A THREADED BORE AND A THREADED COUNTER BORE, THE UPPER TERMINAL END OF SAID THERMOPLASTIC TUBING THREADEDLY SECURED IN SAID BORE AND THE UPPER TERMINAL END OF SAID THREADED STEEL TUBING BEING THREADEDLY SECURED IN SAID COUNTER BORE.
Claim 2
Dependent Claim
152 words
A THERMOPLASTIC LINED STEEL TUBING ASSEMBLY POSITIONED IN A WELL BORE COMPRISING A PLURALITY OF THREADED STEEL TUBING SECTIONS CONNECTED TOGETHER BY THREADED STEEL COUPLINGS AND TERMINATING AT THE BOTTOM WITH A THREADED STEEL TERMINAL COUPLING; A PLURALITY OF THERMOPLASTIC TUBING SECTIONS POSITIONED IN SAID STEEL TUBING AND WELDED TOGETHER AND TERMINATING AT THE BOTTOM WITH A THERMOPLASTIC REDUCING NIPPLE THREADED INTO THE OPEN END OF THE THREADED STEEL TERMINAL COUPLING WITH THE SMALLER END OF SAID NIPPLE EXTENDING THROUGH SAID COUPLING AND WELDED TO SAID PLURALITY OF THERMOPLASTIC SECTIONS; A STEEL COMBINATION COUPLING ATTACHED TO THE UPPER END OF SAID PLURALITY OF STEEL TUBING SECTIONS, SAID COMBINATION COUPLING HAVING IN ONE END THEREOF A THREADED BORE AND A THREADED COUNTER BORE, THE UPPER TERMINAL END OF SAID THERMOPLASTIC TUBING THREADEDLY SECURED IN SAID BORE AND THE UPPER TERMINAL END OF SAID THREADED STEEL TUBING BEING THREADEDLY SECURED IN SAID COUNTER BORE.
References Cited (Backward Citations)
US1112677A
Cited
US1088491A
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US1746132A
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US1953172A
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US2982311A
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US2926701A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |