US2955654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barrel assembly for use in fracturing oil wells
Assignee: Halliburton Oil Well Cementing Co
•
Filing: 1957-12-05
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Granted: 1960-10-11
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Expires: 1977-12-05
Abstract
No abstract record available.
Inventors
- 👤 Joel M Stogner
- 👤 Jack C Mcguire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:57
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/068; E21B33/10; E21B33/13; E21B33/138
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US94279A
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US285454A
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US1729287A
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US2272673A
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US2146066A
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US2642268A
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US2698582A
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US2790500A
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US2754910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |