US3220863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well cementing compositions
Assignee: Halliburton Co
•
Filing: 1961-11-15
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Granted: 1965-11-30
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Expires: 1981-11-15
Abstract
No abstract record available.
Inventors
- 👤 Eldon J Mayhew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 22:48
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/24; C04B24/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A COMPOSITION FOR USE IN CEMENTING A CASING IN A DRILLED WELL, CONSISTING ESSENTIALLY OF HYDRAULIC CALCAREOUS CEMENT; WATER AND GILSONITE AS AGGREGATE IN DISCRETE PARTICLE FORM, THE GILSONITE BEING PRESENT IN AMOUNT BETWEEN ABOUT 0.5 TO 10 TIMES BY VOLUME THE AMOUNT OF CEMENT, AND THE PROPORTION OF WATER TO CEMENT AND GILSONITE BEING SUCH THAT THE MIXTURE IS A PUMPABLE SLURRY CAPABLE OF SETTING UP INTO A SOLID MASS.
Claim 2
Dependent Claim
71 words
A COMPOSITION FOR USE IN CEMENTING A CASING IN A DRILLED WELL, CONSISTING ESSENTIALLY OF HYDRAULIC CALCAREOUS CEMENT; WATER AND GILSONITE AS AGGREGATE IN DISCRETE PARTICLE FORM, THE GILSONITE BEING PRESENT IN AMOUNT BETWEEN ABOUT 0.5 TO 10 TIMES BY VOLUME THE AMOUNT OF CEMENT, AND THE PROPORTION OF WATER TO CEMENT AND GILSONITE BEING SUCH THAT THE MIXTURE IS A PUMPABLE SLURRY CAPABLE OF SETTING UP INTO A SOLID MASS.
References Cited (Backward Citations)
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Cited
US2285302A
Cited
US2812161A
Cited
US2880096A
Cited
US2798003A
Cited
US2823753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |