US3482627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus effecting and controlling the filtration of fluids and recharge of underground formations by special wells
Assignee: Individual
•
Filing: 1967-12-13
•
Granted: 1969-12-09
•
Expires: 1987-12-13
Abstract
No abstract record available.
Inventors
- 👤 Ross Nebolsine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:21
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/08; E21B43/082; E21B43/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE231373C
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US1382295A
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US2213987A
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US2512801A
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US2762439A
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US2918973A
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FR1132679A
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US3062284A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |