US2946385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well system
Assignee: Individual
•
Filing: 1956-09-05
•
Granted: 1960-07-26
•
Expires: 1976-09-05
Abstract
No abstract record available.
Inventors
- 👤 Robert W Dicken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:33
CPC Classifications
E; E03; E03B; E03B5/00; E03B5/04; E03B5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1796064A
Cited
US2295416A
Cited
US2706649A
Cited
US2692066A
Cited
US2689611A
Cited
US2771955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |