US3490533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of placement of polymer solutions in primary production and secondary recovery wells
Assignee: Halliburton Co
•
Filing: 1968-02-28
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Granted: 1970-01-20
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Expires: 1988-02-28
Abstract
No abstract record available.
Inventors
- 👤 Homer C Mclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:43
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/84; C09K8/86; C09K8/88; C09K8/882; C09K8/58; C09K8/588
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2842492A
Cited
US3044548A
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US3070158A
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US3180410A
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US3282337A
Cited
US3268002A
Cited
US3308885A
Cited
US3412796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |