Patent US3502148A successfully refreshed from Google Patents.
US3502148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving bond strength
Assignee: Halliburton Co
•
Filing: 1967-01-27
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Granted: 1970-03-24
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Expires: 1987-01-27
Abstract
No abstract record available.
Inventors
- 👤 Knox A Slagle
- 👤 Lloyd G Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:55
CPC Classifications
E; E21; E21B; E21B36/00; C; C09; C09K; C09K8/00; C09K8/42; E21B33/00; E21B33/10; E21B33/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2071389A
Cited
US2168735A
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US2236987A
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US2188589A
Cited
US2206389A
Cited
US3055424A
Cited
US3219110A
Cited
US3277963A
Cited
US3360046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |