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US2658352A
Expired / Lapsed
US
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Device for installing cesspolls in a single operation
Assignee: Individual
•
Filing: 1951-06-07
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Granted: 1953-11-10
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Expires: 1971-06-07
Abstract
No abstract record available.
Inventors
- 👤 Haeg Robert James
- 👤 Carlton C Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:14
CPC Classifications
E; E21; E21B; E21B11/00; E21B11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US887952A
Cited
US2221226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |