US3119451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cement basket
Assignee: Individual
•
Filing: 1961-01-09
•
Granted: 1964-01-28
•
Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 John A Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:11
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
IN COMBINATION WITH A WELL CASING, A CEMENT BASKET AND GUIDE COMPRISING, UPPER AND LOWER COLLARS SURROUNDING THE WELL CASING AND SLIDABLE THEREON, OUT-BOWED FLEXIBLE STRIPS FASTENED AT THEIR EXTREMITIES TO THE COLLARS AND EXTENDING LENGTHWISE OF THE CASING, MOUNTING MEANS FOR CEMENT BASKET STRIPS SURROUNDING THE WELL CASING, SLIDABLE THEREON AND POSITIONED BETWEEN THE UPPER AND LOWER COLLARS, SAID MOUNTING MEANS FIXED RELATIVE TO SAID LOWER COLLAR, A PLURALITY OF UPSTANDING, OUTBOWED, FREE-ENDED CEMENT BASKET STRIP UNITS ANCHORED TO SAID MOUNTING MEANS, WITHIN THE FASTENED, OUT-BOWED STRIPS AND EXTENDING ONLY A PORTION OF THE DISTANCE BETWEEN THE UPPER AND LOWER COLLARS, EACH SAID STRIP UNIT SO POSITIONED RELATIVE TO ADJACENT STRIP UNITS AS TO OVERLIE IN AT LEAST SOME PORTION THEREOF AT LEAST ONE ADJACENT STRIP UNIT, EACH OF SAID FLEXIBLE STRIPS POSITIONED SO AS TO OVERLIE AT LEAST A PORTION OF ONE OF SAID UNITS, EACH SAID STRIP UNIT OF MARKEDLY GREATER WIDTH THAN SAID FLEXIBLE STRIPS, AND MEANS FOR LIMITING THE SLIDING MOTION OF SAID CEMENT BASKET AND GUIDE ON SAID CASING.
Claim 2
Dependent Claim
175 words
IN COMBINATION WITH A WELL CASING, A CEMENT BASKET AND GUIDE COMPRISING, UPPER AND LOWER COLLARS SURROUNDING THE WELL CASING AND SLIDABLE THEREON, OUT-BOWED FLEXIBLE STRIPS FASTENED AT THEIR EXTREMITIES TO THE COLLARS AND EXTENDING LENGTHWISE OF THE CASING, MOUNTING MEANS FOR CEMENT BASKET STRIPS SURROUNDING THE WELL CASING, SLIDABLE THEREON AND POSITIONED BETWEEN THE UPPER AND LOWER COLLARS, SAID MOUNTING MEANS FIXED RELATIVE TO SAID LOWER COLLAR, A PLURALITY OF UPSTANDING, OUTBOWED, FREE-ENDED CEMENT BASKET STRIP UNITS ANCHORED TO SAID MOUNTING MEANS, WITHIN THE FASTENED, OUT-BOWED STRIPS AND EXTENDING ONLY A PORTION OF THE DISTANCE BETWEEN THE UPPER AND LOWER COLLARS, EACH SAID STRIP UNIT SO POSITIONED RELATIVE TO ADJACENT STRIP UNITS AS TO OVERLIE IN AT LEAST SOME PORTION THEREOF AT LEAST ONE ADJACENT STRIP UNIT, EACH OF SAID FLEXIBLE STRIPS POSITIONED SO AS TO OVERLIE AT LEAST A PORTION OF ONE OF SAID UNITS, EACH SAID STRIP UNIT OF MARKEDLY GREATER WIDTH THAN SAID FLEXIBLE STRIPS, AND MEANS FOR LIMITING THE SLIDING MOTION OF SAID CEMENT BASKET AND GUIDE ON SAID CASING.
References Cited (Backward Citations)
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US2392145A
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Cited
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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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |