US3481400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of solids plugged wells with reversibly adsorbable inhibitor
Assignee: ExxonMobil Upstream Research Co
•
Filing: 1967-04-03
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Granted: 1969-12-02
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Expires: 1987-04-03
Abstract
No abstract record available.
Inventors
- 👤 John K Kerver
- 👤 Albert D Kaiser Jr
- 👤 Joe K Heilhecker
- 👤 Joseph M Mckinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:45
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/52; C09K8/528; C09K8/60; C09K8/62; C09K8/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2777818A
Cited
US2852077A
Cited
US2877848A
Cited
US3021901A
Cited
US3179170A
Cited
US3283817A
Cited
US3254719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |