US3280911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well liner with permeable joint
Assignee: Mobil Oil AS
•
Filing: 1963-12-12
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Granted: 1966-10-25
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Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 Lloyd K Strange
- 👤 Jr James S Mcniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:36
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/2405; E21B43/02; E21B43/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A WELL-LINER ADAPTED FOR USE IN OXIDIZING ATMOSPHERES AT TEMPERATURES ABOVE 800* F. WHICH COMPRISES STACKED, ARTICULATED CONDUIT SECTIONS OF A REFRACTORY MATERIAL, SAID SECTIONS HAVING PROTRUDING AND RECESSED ENDS AND CONFORMABLY ABUTTING ONE TO ANOTHER TO FORM JOINT MEANS PROVIDING FLEXIBILITY IN PERMITTING LATERAL MOVEMENT OF SAID SECTIONS INDIVIDUAL AND MAINTAINING SAID SECTIONS IN FLUID PERMEABLE, SAND IMPERMEABLE RELATIONSHIP.
Claim 2
Dependent Claim
60 words
A WELL-LINER ADAPTED FOR USE IN OXIDIZING ATMOSPHERES AT TEMPERATURES ABOVE 800* F. WHICH COMPRISES STACKED, ARTICULATED CONDUIT SECTIONS OF A REFRACTORY MATERIAL, SAID SECTIONS HAVING PROTRUDING AND RECESSED ENDS AND CONFORMABLY ABUTTING ONE TO ANOTHER TO FORM JOINT MEANS PROVIDING FLEXIBILITY IN PERMITTING LATERAL MOVEMENT OF SAID SECTIONS INDIVIDUAL AND MAINTAINING SAID SECTIONS IN FLUID PERMEABLE, SAND IMPERMEABLE RELATIONSHIP.
References Cited (Backward Citations)
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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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |